Merge pull request #17 from berttty/docs

Add the empty structure of docs
diff --git a/pom.xml b/pom.xml
index 2585e06..2e86bd7 100644
--- a/pom.xml
+++ b/pom.xml
@@ -943,6 +943,8 @@
 
                         <exclude>**/*.svg</exclude>
                         <exclude>**/Gemfile.lock</exclude>
+                        <exclude>**/.jekyll-cache/**</exclude>
+                        <exclude>**/README.md</exclude>
                         <!-- TODO: I am pretty sure we need to remove this and replace it with a different text -->
                         <exclude>src/test/resources/ulysses.txt</exclude>
                         <exclude>src/test/resources/test.edgelist</exclude>
diff --git a/wayang-docs/src/main/resources/README.md b/wayang-docs/src/main/resources/README.md
index ac91bc6..1ac3ef0 100644
--- a/wayang-docs/src/main/resources/README.md
+++ b/wayang-docs/src/main/resources/README.md
@@ -2,3 +2,50 @@
 
 ## menus
 the menus is using the plugin jekyll-menus, the documentation is [here](https://github.com/forestryio/jekyll-menus)
+
+
+
+What is Wayang?
+    Concepts
+    Overview
+getting start Wayang
+    Building wayang
+    installing wayang
+    using wayang
+    how to develop on wayang
+Using Wayang
+    Api Java/Scala
+        overview
+        configurations
+        examples
+    API Python
+        overview
+        configurations
+        examples
+    .... same for API-SQL and futures api
+    calibrating the model
+Extending Wayang
+    Adding a platform
+        Creating the plugin
+        creating an operator
+        creating the mapping (1 to 1, 1 to n)
+        creating channel
+        creating the compiler
+        wrapping udf and others
+How to Contribute
+    Bugs Report
+    Jira Issue Maintenance
+    Documentation changes
+    Code change
+        Choosing what to contribute
+        code review criteria
+        preparing to contribute code changes
+            jira issues
+            pull request
+            closing your pull request and jira issue
+    review process
+    code style guide
+    reviewing changes
+    testing releases
+    user libraries to wayang
+    helping other users
diff --git a/wayang-docs/src/main/resources/_data/menus.yml b/wayang-docs/src/main/resources/_data/menus.yml
index abf81e4..648e0e1 100644
--- a/wayang-docs/src/main/resources/_data/menus.yml
+++ b/wayang-docs/src/main/resources/_data/menus.yml
@@ -1,23 +1,91 @@
+# Licensed to the Apache Software Foundation (ASF) under one or more
+# contributor license agreements.  See the NOTICE file distributed with
+# this work for additional information regarding copyright ownership.
+# The ASF licenses this file to You under the Apache License, Version 2.0
+# (the "License"); you may not use this file except in compliance with
+# the License.  You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
 header:
+  - url: /what_is_wayang/
+    title: What is Wayang?
+    identifier: what_wayang
+    weight: 1
+
+  - url: /getting_start/
+    title: Getting Started with Wayang
+    identifier: getting_start
+    weight: 2
+
+  - url: /using_wayang/
+    title: Using Wayang
+    identifier: using
+    weight: 3
+
+  - url: /extending_wayang/
+    title: Extending Wayang
+    identifier: extending
+    weight: 4
+
   - url: /how_contribute/
     title: How To Contribute
     identifier: contribute
-    weight: 1
+    weight: 5
 
-  - url: /how_build/
+
+getting_start:
+  - url: /getting_start/how_build/
     title: How To Build Wayang
     identifier: build
-    weight: 2
+    weight: 0
 
-  - url: /how_install/
+  - url: /getting_start/how_install/
     title: How To Install Wayang
     identifier: install
-    weight: 3
+    weight: 1
 
-  - url: /how_run/
+  - url: /getting_start/how_run/
     title: How To Run Wayang
     identifier: run
-    weight: 4
+    weight: 2
+
+  - url: /getting_start/writting_plan_wayang/
+    title: Writting a Plan with Wayang
+    identifier: writting
+    weight: 3
+
+using:
+  - url: /using_wayang/api_java_scala/
+    title: API Java/Scala
+    identifier: api_java
+    weight: 0
+
+  - url: /using_wayang/api_python/
+    title: API Python
+    identifier: api_python
+    weight: 1
+
+  - url: /using_wayang/api_rest/
+    title: API REST
+    identifier: api_rest
+    weight: 2
+
+#  - url: /using_wayang/api_sql/
+#    title: API SQL
+#    identifier: api_sql
+#    weight: 3
+
+extending:
+  - url: /extending_wayang/adding_platform/
+    title: Adding Platform
+    identifier: platform
+    weight: 0
 
 contribute:
   - url: /how_contribute/code_changes/
diff --git a/wayang-docs/src/main/resources/assets/css/main.css b/wayang-docs/src/main/resources/assets/css/main.css
index 1f57dce..667c710 100644
--- a/wayang-docs/src/main/resources/assets/css/main.css
+++ b/wayang-docs/src/main/resources/assets/css/main.css
@@ -132,3 +132,7 @@
     border-left: solid 0.5em transparent;
     border-right: solid 0.5em transparent;
 }
+
+div.sub-menu ul li:last-child {
+    border-bottom: solid 1px #a00e5a;
+}
diff --git a/wayang-docs/src/main/resources/extending_wayang/adding_platform/Creating_compiler.md b/wayang-docs/src/main/resources/extending_wayang/adding_platform/Creating_compiler.md
new file mode 100644
index 0000000..b9dd61f
--- /dev/null
+++ b/wayang-docs/src/main/resources/extending_wayang/adding_platform/Creating_compiler.md
@@ -0,0 +1,34 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Creating Compiler"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+menu:
+    platform:
+        weight: 5
+---
+
+Creating Compiler function
+
+
+
+
diff --git a/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_channel.md b/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_channel.md
new file mode 100644
index 0000000..e95d26a
--- /dev/null
+++ b/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_channel.md
@@ -0,0 +1,33 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Creating a Channels"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+menu:
+    platform:
+        weight: 4
+---
+
+
+Creating Channel of the platforms
+
+
diff --git a/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_mapping.md b/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_mapping.md
new file mode 100644
index 0000000..2c3086c
--- /dev/null
+++ b/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_mapping.md
@@ -0,0 +1,39 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Creating a Mapping"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+menu:
+    platform:
+        weight: 3
+---
+
+Creating a Mapping of the operator
+
+
+
+## Mapping 1 to 1
+
+
+## Mapping 1 to n
+
+
diff --git a/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_operator.md b/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_operator.md
new file mode 100644
index 0000000..d1a8bfa
--- /dev/null
+++ b/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_operator.md
@@ -0,0 +1,34 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Creating an Operator"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+menu:
+    platform:
+        weight: 2
+---
+
+Creating an operator in a platform
+
+
+
+
diff --git a/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_plugin.md b/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_plugin.md
new file mode 100644
index 0000000..58b28a9
--- /dev/null
+++ b/wayang-docs/src/main/resources/extending_wayang/adding_platform/creating_plugin.md
@@ -0,0 +1,33 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Creating plugin"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+menu:
+    platform:
+        weight: 1
+---
+
+Creating plugin of an platform
+
+
+
diff --git a/wayang-docs/src/main/resources/extending_wayang/adding_platform/index.md b/wayang-docs/src/main/resources/extending_wayang/adding_platform/index.md
new file mode 100644
index 0000000..dccccb4
--- /dev/null
+++ b/wayang-docs/src/main/resources/extending_wayang/adding_platform/index.md
@@ -0,0 +1,28 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Adding Platfom to Wayang"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+---
+
+Adding platform to Wayang
+
diff --git a/wayang-docs/src/main/resources/extending_wayang/adding_platform/others.md b/wayang-docs/src/main/resources/extending_wayang/adding_platform/others.md
new file mode 100644
index 0000000..ace79d2
--- /dev/null
+++ b/wayang-docs/src/main/resources/extending_wayang/adding_platform/others.md
@@ -0,0 +1,34 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Others considerations"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+menu:
+    platform:
+        weight: 7
+---
+
+Other considerations
+
+
+
+
diff --git a/wayang-docs/src/main/resources/extending_wayang/adding_platform/wrapping_udfs.md b/wayang-docs/src/main/resources/extending_wayang/adding_platform/wrapping_udfs.md
new file mode 100644
index 0000000..93a3b75
--- /dev/null
+++ b/wayang-docs/src/main/resources/extending_wayang/adding_platform/wrapping_udfs.md
@@ -0,0 +1,33 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Wrapping UDF's"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+menu:
+    platform:
+        weight: 6
+---
+
+Wrapping UDF's
+
+
+
diff --git a/wayang-docs/src/main/resources/extending_wayang/index.md b/wayang-docs/src/main/resources/extending_wayang/index.md
new file mode 100644
index 0000000..fb8c154
--- /dev/null
+++ b/wayang-docs/src/main/resources/extending_wayang/index.md
@@ -0,0 +1,42 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Extending Wayang"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+---
+
+Extending Wayang
+
+#Adding a Platform
+
+
+## Creating the Plugin
+## Creating an Operator
+## Creating the Mapping
+
+### Mapping 1 to 1
+### Mapping 1 to n
+
+
+## Creating Channel
+## Creating the Compiler function
+## Wrapping UDF's and Others
diff --git a/wayang-docs/src/main/resources/how_build/build_step.md b/wayang-docs/src/main/resources/getting_start/how_build/build_step.md
similarity index 100%
rename from wayang-docs/src/main/resources/how_build/build_step.md
rename to wayang-docs/src/main/resources/getting_start/how_build/build_step.md
diff --git a/wayang-docs/src/main/resources/how_build/index.md b/wayang-docs/src/main/resources/getting_start/how_build/index.md
similarity index 100%
rename from wayang-docs/src/main/resources/how_build/index.md
rename to wayang-docs/src/main/resources/getting_start/how_build/index.md
diff --git a/wayang-docs/src/main/resources/how_install/index.md b/wayang-docs/src/main/resources/getting_start/how_install/index.md
similarity index 100%
rename from wayang-docs/src/main/resources/how_install/index.md
rename to wayang-docs/src/main/resources/getting_start/how_install/index.md
diff --git a/wayang-docs/src/main/resources/how_install/install_step.md b/wayang-docs/src/main/resources/getting_start/how_install/install_step.md
similarity index 100%
rename from wayang-docs/src/main/resources/how_install/install_step.md
rename to wayang-docs/src/main/resources/getting_start/how_install/install_step.md
diff --git a/wayang-docs/src/main/resources/how_run/index.md b/wayang-docs/src/main/resources/getting_start/how_run/index.md
similarity index 100%
rename from wayang-docs/src/main/resources/how_run/index.md
rename to wayang-docs/src/main/resources/getting_start/how_run/index.md
diff --git a/wayang-docs/src/main/resources/how_run/run_step.md b/wayang-docs/src/main/resources/getting_start/how_run/run_step.md
similarity index 100%
rename from wayang-docs/src/main/resources/how_run/run_step.md
rename to wayang-docs/src/main/resources/getting_start/how_run/run_step.md
diff --git a/wayang-docs/src/main/resources/getting_start/index.md b/wayang-docs/src/main/resources/getting_start/index.md
new file mode 100644
index 0000000..9f23d54
--- /dev/null
+++ b/wayang-docs/src/main/resources/getting_start/index.md
@@ -0,0 +1,27 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Getting Started"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+---
+
+Getting Started with Wayang
diff --git a/wayang-docs/src/main/resources/getting_start/writting_plan_wayang/index.md b/wayang-docs/src/main/resources/getting_start/writting_plan_wayang/index.md
new file mode 100644
index 0000000..22afccd
--- /dev/null
+++ b/wayang-docs/src/main/resources/getting_start/writting_plan_wayang/index.md
@@ -0,0 +1,27 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Writting a Plan in Wayang"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+---
+
+Writting a Plan in Wayang
diff --git a/wayang-docs/src/main/resources/how_contribute/code_changes/preparing_contribute_code_changes/index.md b/wayang-docs/src/main/resources/how_contribute/code_changes/preparing_contribute_code_changes/index.md
index e415877..05fcb03 100644
--- a/wayang-docs/src/main/resources/how_contribute/code_changes/preparing_contribute_code_changes/index.md
+++ b/wayang-docs/src/main/resources/how_contribute/code_changes/preparing_contribute_code_changes/index.md
@@ -42,4 +42,4 @@
 git clone https://github.com/apache/incubator-wayang
 ```
 
-Once you’ve downloaded Wayang, you can find instructions for [installing]({% link how_install/index.md %}) and [building]({% link how_build/index.md %}) it on the [Wayang documentation](https://wayang.apache.org/docs/latest/).
+Once you’ve downloaded Wayang, you can find instructions for [installing]({% link getting_start/how_install/index.md %}) and [building]({% link getting_start/how_build/index.md %}) it on the [Wayang documentation](https://wayang.apache.org/docs/latest/).
diff --git a/wayang-docs/src/main/resources/using_wayang/api_java_scala/index.md b/wayang-docs/src/main/resources/using_wayang/api_java_scala/index.md
new file mode 100644
index 0000000..ae60fe7
--- /dev/null
+++ b/wayang-docs/src/main/resources/using_wayang/api_java_scala/index.md
@@ -0,0 +1,31 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "API Java/Scala"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+---
+
+API Java/Scala
+
+# Configuration 
+
+# Examples
diff --git a/wayang-docs/src/main/resources/using_wayang/api_python/index.md b/wayang-docs/src/main/resources/using_wayang/api_python/index.md
new file mode 100644
index 0000000..1ded742
--- /dev/null
+++ b/wayang-docs/src/main/resources/using_wayang/api_python/index.md
@@ -0,0 +1,32 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "API Python"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+---
+
+API Python
+
+# Configuration
+
+# Examples
+
diff --git a/wayang-docs/src/main/resources/using_wayang/api_rest/index.md b/wayang-docs/src/main/resources/using_wayang/api_rest/index.md
new file mode 100644
index 0000000..8a64b7b
--- /dev/null
+++ b/wayang-docs/src/main/resources/using_wayang/api_rest/index.md
@@ -0,0 +1,32 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "API REST"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+---
+
+API REST
+
+# Configuration
+
+# Examples
+
diff --git a/wayang-docs/src/main/resources/using_wayang/api_sql/index.md b/wayang-docs/src/main/resources/using_wayang/api_sql/index.md
new file mode 100644
index 0000000..e7f27ae
--- /dev/null
+++ b/wayang-docs/src/main/resources/using_wayang/api_sql/index.md
@@ -0,0 +1,34 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "API SQL"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+---
+
+API SQL
+
+[comment]: <> (TODO:// remove the comments on the _data/menus.yml to active this)
+
+
+# Configuration
+
+# Examples
diff --git a/wayang-docs/src/main/resources/using_wayang/cost_model_calibration.md b/wayang-docs/src/main/resources/using_wayang/cost_model_calibration.md
new file mode 100644
index 0000000..9e68950
--- /dev/null
+++ b/wayang-docs/src/main/resources/using_wayang/cost_model_calibration.md
@@ -0,0 +1,33 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Cost Model Calibration"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+menu:
+    using:
+        weight: 100
+---
+
+Cost Model Calibration
+
+
+
diff --git a/wayang-docs/src/main/resources/using_wayang/index.md b/wayang-docs/src/main/resources/using_wayang/index.md
new file mode 100644
index 0000000..1693bb7
--- /dev/null
+++ b/wayang-docs/src/main/resources/using_wayang/index.md
@@ -0,0 +1,27 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Using Wayang"
+previous:
+    url: /
+    title: previous
+next:
+    url: /
+    title: next
+---
+
+Using Wayang
diff --git a/wayang-docs/src/main/resources/what_is_wayang/concepts_wayang.md b/wayang-docs/src/main/resources/what_is_wayang/concepts_wayang.md
new file mode 100644
index 0000000..1e14e08
--- /dev/null
+++ b/wayang-docs/src/main/resources/what_is_wayang/concepts_wayang.md
@@ -0,0 +1,27 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "Concepts"
+menus:
+    what_wayang:
+        weight: 1
+next:
+    url: /
+    title: 
+---
+
+Concepts of Wayang
diff --git a/wayang-docs/src/main/resources/what_is_wayang/index.md b/wayang-docs/src/main/resources/what_is_wayang/index.md
new file mode 100644
index 0000000..0af4a43
--- /dev/null
+++ b/wayang-docs/src/main/resources/what_is_wayang/index.md
@@ -0,0 +1,24 @@
+---
+license: |
+    Licensed to the Apache Software Foundation (ASF) under one or more
+    contributor license agreements.  See the NOTICE file distributed with
+    this work for additional information regarding copyright ownership.
+    The ASF licenses this file to You under the Apache License, Version 2.0
+    (the "License"); you may not use this file except in compliance with
+    the License.  You may obtain a copy of the License at
+
+         http://www.apache.org/licenses/LICENSE-2.0
+    
+    Unless required by applicable law or agreed to in writing, software
+    distributed under the License is distributed on an "AS IS" BASIS,
+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+    See the License for the specific language governing permissions and
+    limitations under the License.
+layout: default
+title: "What is Wayang?"
+next:
+    url: /
+    title: 
+---
+
+What is Wayang?