Update files from the datasets library (from 1.18.0)

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

README.md

@@ -16,6 +16,7 @@ task_categories:
 task_ids:
 - other-other-data-mining
 paperswithcode_id: arcov-19
+pretty_name: ArCOV19
 ---
 
 # Dataset Card for ArCOV19
@@ -151,4 +152,4 @@ No annotation was provided with the dataset.
 
 ### Contributions
 
-Thanks to [@Fatima-Haouari](https://github.com/Fatima-Haouari) for adding this dataset.
+Thanks to [@Fatima-Haouari](https://github.com/Fatima-Haouari) for adding this dataset.