Update files from the datasets library (from 1.3.0)

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

README.md

@@ -46,6 +46,7 @@ task_ids:
   - [Dataset Curators](#dataset-curators)
   - [Licensing Information](#licensing-information)
   - [Citation Information](#citation-information)
+  - [Contributions](#contributions)
 
 ## Dataset Description
 
@@ -161,4 +162,7 @@ title = {SentiWS -- a Publicly Available German-language Resource for Sentiment
 booktitle = {Proceedings of the 7th International Language Resources and Evaluation (LREC'10)},
 author = {Remus, R. and Quasthoff, U. and Heyer, G.},
 year = {2010}
-}
+}
+### Contributions
+
+Thanks to [@harshalmittal4](https://github.com/harshalmittal4) for adding this dataset.