style(hus):polish readme format and add more information

README.md

@@ -11,6 +11,7 @@ license: apache-2.0
 ## Dataset Description
 This dataset includes 8 episodes of pong-v4 environment. The expert policy is EfficientZero, which is able to generate MCTS hidden states.
 
+## Supported Tasks and Leaderboards
 ## Dataset Structure
 ### Data Instances
 A data point comprises tuples of sequences of (observations, actions, hidden_states):
@@ -27,4 +28,39 @@ A data point comprises tuples of sequences of (observations, actions, hidden_sta
 - `hidden_state`: An Array3D containing corresponding hidden states generated by EfficientZero, from 8 trajectories of an evaluated agent. The data type is float32.
 
 ### Data Splits
-There is only a training set for this dataset, as evaluation is undertaken by interacting with a simulator.
+There is only a training set for this dataset, as evaluation is undertaken by interacting with a simulator.
+
+## Dataset Creation
+### Curation Rationale
+- TBD
+
+### Source Data
+#### Initial Data Collection and Normalization
+- TBD
+  
+#### Who are the source language producers?
+- TBD
+
+#### Annotations
+- TBD
+
+## Considerations for Using the Data
+### Known Limitations
+- TBD
+
+## Additional Information
+
+### Licensing Information
+- TBD
+
+### Citation Information
+
+```
+TBD
+
+```
+
+### Contributions
+Thanks to [@test](test_url), for adding this dataset.
+
+[How to contribute to Datasets](https://files.pushshift.io/reddit/)