Update files from the datasets library (from 1.18.0)

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

README.md

@@ -18,6 +18,7 @@ task_categories:
 task_ids:
 - question-answering-other-knowledge-base-qa
 paperswithcode_id: null
+pretty_name: Grail QA
 ---
 
 # Dataset Card for Grail QA
@@ -178,4 +179,4 @@ Test | 13,231
 
 ### Contributions
 
-Thanks to [@mattbui](https://github.com/mattbui) for adding this dataset.
+Thanks to [@mattbui](https://github.com/mattbui) for adding this dataset.