Update dataset card (#7)

- Update dataset card (b4f2e195736401df8834d4f5a81689c160a0d433)

README.md

@@ -94,7 +94,8 @@ train-eval-index:
 
 - **Homepage:** [https://github.com/FiscalNote/BillSum](https://github.com/FiscalNote/BillSum)
 - **Repository:** [More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)
-- **Paper:** [More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)
+- **Paper:** https://aclanthology.org/D19-5406/
+- **Paper:** https://arxiv.org/abs/1910.00523
 - **Point of Contact:** [More Information Needed](https://github.com/huggingface/datasets/blob/master/CONTRIBUTING.md#how-to-contribute-to-the-dataset-cards)
 - **Size of downloaded dataset files:** 67.26 MB
 - **Size of the generated dataset:** 272.42 MB
@@ -211,16 +212,26 @@ The data consists of three parts: US training bills, US test bills and Californi
 ### Citation Information
 
 ```
-
-@misc{kornilova2019billsum,
-    title={BillSum: A Corpus for Automatic Summarization of US Legislation},
-    author={Anastassia Kornilova and Vlad Eidelman},
-    year={2019},
+@inproceedings{kornilova-eidelman-2019-billsum,
+    title = "{B}ill{S}um: A Corpus for Automatic Summarization of {US} Legislation",
+    author = "Kornilova, Anastassia  and
+      Eidelman, Vladimir",
+    editor = "Wang, Lu  and
+      Cheung, Jackie Chi Kit  and
+      Carenini, Giuseppe  and
+      Liu, Fei",
+    booktitle = "Proceedings of the 2nd Workshop on New Frontiers in Summarization",
+    month = nov,
+    year = "2019",
+    address = "Hong Kong, China",
+    publisher = "Association for Computational Linguistics",
+    url = "https://aclanthology.org/D19-5406",
+    doi = "10.18653/v1/D19-5406",
+    pages = "48--56",
     eprint={1910.00523},
     archivePrefix={arXiv},
-    primaryClass={cs.CL}
+    primaryClass={cs.CL},
 }
-
 ```