Update files from the datasets library (from 1.18.0)

Release notes: https://github.com/huggingface/datasets/releases/tag/1.18.0

README.md

@@ -2,6 +2,7 @@
 languages:
 - en
 paperswithcode_id: natural-questions
+pretty_name: Natural Questions
 ---
 
 # Dataset Card for "natural_questions"
@@ -177,4 +178,4 @@ journal	= {Transactions of the Association of Computational Linguistics}
 
 ### Contributions
 
-Thanks to [@thomwolf](https://github.com/thomwolf), [@lhoestq](https://github.com/lhoestq) for adding this dataset.
+Thanks to [@thomwolf](https://github.com/thomwolf), [@lhoestq](https://github.com/lhoestq) for adding this dataset.