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:
 - fact-checking
 paperswithcode_id: null
+pretty_name: COVID-19 日本語Twitterデータセット (COVID-19 Japanese Twitter Dataset)
 ---
 
 # Dataset Card for COVID-19 日本語Twitterデータセット (COVID-19 Japanese Twitter Dataset)
@@ -148,4 +149,4 @@ The author shows how to cite as「鈴木 優: COVID-19 日本語 Twitter デー
 
 ### Contributions
 
-Thanks to [@forest1988](https://github.com/forest1988) for adding this dataset.
+Thanks to [@forest1988](https://github.com/forest1988) for adding this dataset.