Update README.md

README.md

@@ -7,4 +7,17 @@ sdk: static
 pinned: false
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-Edit this `README.md` markdown file to author your organization card 🔥
+### Dataset
+
+To use our unified datasets, you need to install [ConvLab-3](https://github.com/ConvLab/ConvLab-3) platform first. Then you can load the dataset via:
+```
+from convlab.util import load_dataset, load_ontology, load_database
+
+dataset_name = 'multiwoz21' # use the dataset name in our repo
+dataset = load_dataset(dataset_name)
+ontology = load_ontology(dataset_name)
+database = load_database(dataset_name)
+```
+Each dataset has a `dummy_data.json` showing a few samples. For the unified data format and more usage please refer to [here](https://github.com/ConvLab/ConvLab-3/tree/master/data/unified_datasets).
+
+We welcome contributions to adding new datasets and models!