Update files from the datasets library (from 1.18.0)

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

README.md

@@ -80,6 +80,7 @@ task_categories:
 task_ids:
 - machine-translation
 paperswithcode_id: multiun
+pretty_name: Multilingual Corpus from United Nation Documents
 ---
 
 # Dataset Card for [Dataset Name]
@@ -231,4 +232,4 @@ The underlying task is machine translation.
 ```
 ### Contributions
 
-Thanks to [@patil-suraj](https://github.com/patil-suraj) for adding this dataset.
+Thanks to [@patil-suraj](https://github.com/patil-suraj) for adding this dataset.