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

- Librarian Bot: Add language metadata for dataset (b7a02a06d6b6e2a6d7f14e906ce9e1a685583e61)


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

README.md

@@ -1,3 +1,5 @@
 ---
+language:
+- en
 license: mit
 ---