Doc-example (#18)

* reactive traffic example

* structure

* structure

* waymo example

* rename and add doc

* finish example

* example

* start from 2

documentation/index.rst

@@ -1,6 +1,6 @@
-########################
+##########################
 ScenarioNet Documentation
-########################
+##########################
 
 
 Welcome to the ScenarioNet documentation!
@@ -17,6 +17,40 @@ You can also visit the `GitHub repo <https://github.com/metadriverse/scenarionet
 Please feel free to contact us if you have any suggestions or ideas!
 
 
+.. toctree::
+   :maxdepth: 2
+   :hidden:
+   :caption: Quick Start
+
+   install.rst
+   example.rst
+   operations.rst
+
+.. toctree::
+   :hidden:
+   :maxdepth: 2
+   :caption: Scenario Description
+
+   description.rst
+
+.. toctree::
+   :hidden:
+   :maxdepth: 2
+   :caption: Supported Dataset
+
+   datasets.rst
+   nuplan.rst
+   nuscenes.rst
+   waymo.rst
+   new_data.rst
+
+.. toctree::
+   :hidden:
+   :maxdepth: 2
+   :caption: Simulation
+
+
+
 Citation
 ########