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

- Librarian Bot: Add language metadata for dataset (43c850354ff577174e4b2faab441de7d06befe43)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 dataset_info:
   features:
   - name: multiple_choice_answer