doc: add README for toolchain (#257)
diff --git a/README.md b/README.md
new file mode 100644
index 0000000..dafcd07
--- /dev/null
+++ b/README.md
@@ -0,0 +1,23 @@
+# hugegraph-toolchain
+
+[](https://www.apache.org/licenses/LICENSE-2.0.html)
+[](https://github.com/hugegraph/hugegraph-loader/actions/workflows/ci.yml)
+[](https://codecov.io/gh/hugegraph/hugegraph-loader)
+[](https://mvnrepository.com/artifact/com.baidu.hugegraph/hugegraph-loader)
+
+`hugegraph-toolchain` is the integration project of a series of utilities for [HugeGraph](https://github.com/hugegraph/hugegraph), it includes 4 main modules.
+
+## Modules
+
+- [hugegraph-loader](./hugegraph-loader): Loading datasets into the HugeGraph from multiple data sources.
+- [hugegraph-hubble](./hugegraph-hubble): Online HugeGraph management and analysis dashboard (Include: data loading, schema management, graph traverser and display)
+- [hugegraph-tools](./hugegraph-tools): Command line tool for deploying, managing and backing-up/restoring graphs from HugeGraph.
+- [hugegraph-client](./hugegraph-client): A Java-written client for HugeGraph, providing `RESTful` APIs for accessing graph vertex/edge/schema/gremlin/variables and traversals etc.
+
+## Doc
+
+The [project homepage](https://hugegraph.github.io/hugegraph-doc/) contains more information about `hugegraph-toolchain`.
+
+## License
+
+hugegraph-toolchain is licensed under `Apache 2.0` License.
diff --git a/hugegraph-client/README.md b/hugegraph-client/README.md
index 21a752a..7fb1799 100644
--- a/hugegraph-client/README.md
+++ b/hugegraph-client/README.md
@@ -15,5 +15,9 @@
- RESTful Traversals, shortest path, k-out, k-neighbor, paths and crosspoints etc.
- Variables, CRUD of variables
+## Doc
+
+The [client homepage](https://hugegraph.github.io/hugegraph-doc/quickstart/hugegraph-client.html) contains more information about it.
+
## Licence
The same as HugeGraph, hugegraph-client is also licensed under Apache 2.0 License.
diff --git a/hugegraph-hubble/README.md b/hugegraph-hubble/README.md
index bb58252..69ce55c 100644
--- a/hugegraph-hubble/README.md
+++ b/hugegraph-hubble/README.md
@@ -11,11 +11,11 @@
- Graph connection management, supporting to easily switch graph to operate
- Graph data load, supporting to load large amounts of data from files into hugegraph-server
- Schema management, supporting to easily perform schema manipulation and display
-- graph analysis and graphical display, supporting to build query via gremlin or algorithms with a little effort then will get cool graphical results
+- Graph analysis and graphical display, supporting to build query via the gremlin or algorithms with a little effort then will get cool graphical results
-## Learn More
+## Doc
-[The project homepage](https://hugegraph.github.io/hugegraph-doc/quickstart/hugegraph-hubble.html) contains more information about hugegraph-hubble.
+[The hubble homepage](https://hugegraph.github.io/hugegraph-doc/quickstart/hugegraph-hubble.html) contains more information about it.
## License
diff --git a/hugegraph-loader/README.md b/hugegraph-loader/README.md
index bd9e8fd..4196f1f 100644
--- a/hugegraph-loader/README.md
+++ b/hugegraph-loader/README.md
@@ -34,9 +34,9 @@
mvn clean install
```
-## Learn More
+## Doc
-The [project homepage](https://hugegraph.github.io/hugegraph-doc/) contains more information about hugegraph-loader.
+The [loader homepage](https://hugegraph.github.io/hugegraph-doc/quickstart/hugegraph-loader.html) contains more information about it.
## License
diff --git a/hugegraph-tools/README.md b/hugegraph-tools/README.md
index 723e8a7..a5b3488 100644
--- a/hugegraph-tools/README.md
+++ b/hugegraph-tools/README.md
@@ -10,7 +10,7 @@
## Learn More
-The [project homepage](https://hugegraph.github.io/hugegraph-doc/quickstart/hugegraph-tools.html) contains more information about HugeGraph-Tools.
+The [tools homepage](https://hugegraph.github.io/hugegraph-doc/quickstart/hugegraph-tools.html) contains more information about it.
## License
