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:
 - named-entity-recognition
 paperswithcode_id: conll
+pretty_name: CoNLL++
 ---
 
 # Dataset Card for "conllpp"
@@ -178,4 +179,4 @@ The data fields are the same among all splits.
 
 ### Contributions
 
-Thanks to [@ZihanWangKi](https://github.com/ZihanWangKi) for adding this dataset.
+Thanks to [@ZihanWangKi](https://github.com/ZihanWangKi) for adding this dataset.