Update files from the datasets library (from 1.18.0)

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

README.md

@@ -19,6 +19,7 @@ task_categories:
 task_ids:
 - machine-translation
 paperswithcode_id: null
+pretty_name: OpusXhosanavy
 ---
 
 # Dataset Card for [Dataset Name]
@@ -143,4 +144,4 @@ J. Tiedemann, 2012, Parallel Data, Tools and Interfaces in OPUS. In Proceedings
 
 ### Contributions
 
-Thanks to [@lhoestq](https://github.com/lhoestq), [@spatil6](https://github.com/spatil6) for adding this dataset.
+Thanks to [@lhoestq](https://github.com/lhoestq), [@spatil6](https://github.com/spatil6) for adding this dataset.