Update files from the datasets library (from 1.4.0)

Release notes: https://github.com/huggingface/datasets/releases/tag/1.4.0

README.md

@@ -148,6 +148,7 @@ non-commercial licence: CC BY-NC-ND 4.0
 
 ### Citation Information
 
+```
 @inproceedings{gliwa-etal-2019-samsum,
     title = "{SAMS}um Corpus: A Human-annotated Dialogue Dataset for Abstractive Summarization",
     author = "Gliwa, Bogdan  and
@@ -163,7 +164,8 @@ non-commercial licence: CC BY-NC-ND 4.0
     doi = "10.18653/v1/D19-5409",
     pages = "70--79"
 }
+```
 
 ### Contributions
 
-Thanks to [@cccntu](https://github.com/cccntu) for adding this dataset.
+Thanks to [@cccntu](https://github.com/cccntu) for adding this dataset.