Update files from the datasets library (from 1.3.0)

Release notes: https://github.com/huggingface/datasets/releases/tag/1.3.0

README.md

@@ -64,6 +64,7 @@ task_ids:
   - [Dataset Curators](#dataset-curators)
   - [Licensing Information](#licensing-information)
   - [Citation Information](#citation-information)
+  - [Contributions](#contributions)
 
 ## Dataset Description
 
@@ -230,4 +231,7 @@ The licenses are:
     archivePrefix={arXiv},
     primaryClass={cs.CL}
 }
-```
+```
+### Contributions
+
+Thanks to [@jplu](https://github.com/jplu) for adding this dataset.