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

- Librarian Bot: Add language metadata for dataset (921f9f6d7384c8b6916df2f3f5edcd1b6fb3b4e7)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 license: apache-2.0
 ---