Librarian Bot: Add language metadata for dataset (#1)

- Librarian Bot: Add language metadata for dataset (80f4630efb9cc2a631d39ac3b6cd7a2c3b332452)


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

README.md

@@ -1,4 +1,7 @@
 ---
+language:
+- ml
+- en
 dataset_info:
   features:
   - name: idx