Update README.md

README.md

@@ -104,9 +104,9 @@ type is one of the following:
 - contracts
 - legislation
 - other
-- mc4_legal
+- legal_mc4
 
-`mc4_legal` is a subset of the other type but is listed separately so it can be easily excluded since it is less
+`legal_mc4` is a subset of the other type but is listed separately so it can be easily excluded since it is less
 permissively licensed than the other types.
 
 Use the dataset like this:
@@ -283,7 +283,14 @@ See [Pile-of-Law](https://huggingface.co/datasets/pile-of-law/pile-of-law#data-i
 ### Citation Information
 
 ```
-TODO add citation
+@misc{niklaus2023multilegalpile,
+      title={MultiLegalPile: A 689GB Multilingual Legal Corpus}, 
+      author={Joel Niklaus and Veton Matoshi and Matthias Stürmer and Ilias Chalkidis and Daniel E. Ho},
+      year={2023},
+      eprint={2306.02069},
+      archivePrefix={arXiv},
+      primaryClass={cs.CL}
+}
 ```
 
 ### Contributions