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

- Librarian Bot: Add language metadata for dataset (e84426bc868477f083ded37c33e279e9497173e1)


Co-authored-by: Librarian Bot (Bot) <[email protected]>

README.md

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