Merge pull request #21 from apache/AddGitignore

Add gitignore
diff --git a/DISCLAIMER-WIP b/DISCLAIMER-WIP
index 2d6aafd..ae9f942 100644
--- a/DISCLAIMER-WIP
+++ b/DISCLAIMER-WIP
@@ -15,7 +15,7 @@
 issues the project is currently aware of (note that this list, by
 definition, is likely to be incomplete): 
 
- * The LICENSE file may be incomplete and will be fixed with the next release.
+ * No issues are known at this time. 
 
 If you are planning to incorporate this work into your
 product or project, please be aware that you will need to conduct a
diff --git a/LICENSE b/LICENSE
index d645695..6e81e25 100644
--- a/LICENSE
+++ b/LICENSE
@@ -176,27 +176,32 @@
 
    END OF TERMS AND CONDITIONS
 
-   APPENDIX: How to apply the Apache License to your work.
 
-      To apply the Apache License to your work, attach the following
-      boilerplate notice, with the fields enclosed by brackets "[]"
-      replaced with your own identifying information. (Don't include
-      the brackets!)  The text should be enclosed in the appropriate
-      comment syntax for the file format. We also recommend that a
-      file or class name and description of purpose be included on the
-      same "printed page" as the copyright notice for easier
-      identification within third-party archives.
 
-   Copyright [yyyy] [name of copyright owner]
+APPENDIX A: How to apply the Apache License to your work.
 
-   Licensed 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
+    To apply the Apache License to your work, attach the following
+    boilerplate notice, with the fields enclosed by brackets "[]"
+    replaced with your own identifying information. (Don't include
+    the brackets!)  The text should be enclosed in the appropriate
+    comment syntax for the file format. We also recommend that a
+    file or class name and description of purpose be included on the
+    same "printed page" as the copyright notice for easier
+    identification within third-party archives.
+    -------------------------------------------------------------
+    Copyright [yyyy] [name of copyright owner]
 
-       http://www.apache.org/licenses/LICENSE-2.0
+    Licensed 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
 
-   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.
+        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.
+    -------------------------------------------------------------
+
+
diff --git a/NOTICE b/NOTICE
index a2de9b9..e51b4ae 100644
--- a/NOTICE
+++ b/NOTICE
@@ -1,5 +1,8 @@
 Apache DataSketches-postgresql (incubating)
-Copyright 2019 The Apache Software Foundation
+Copyright 2020 The Apache Software Foundation
+
+Copyright 2015-2018 Yahoo
+Copyright 2019 Verizon Media
 
 This product includes software developed at
 The Apache Software Foundation (http://www.apache.org/).