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

- Librarian Bot: Add language metadata for dataset (66db6a31fa7f4f4182f08a3fb004e358c3c0bcb2)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 license: mit
 ---