Librarian Bot: Add language metadata for dataset (#2)

- Librarian Bot: Add language metadata for dataset (9642a925aa9f7d8eaae9830ffb98587166506f3b)


Co-authored-by: Librarian Bot (Bot) <librarian-bot@users.noreply.huggingface.co>

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 dataset_info:
 - config_name: default
   features: