Librarian Bot: Add language metadata for dataset (#1)

- Librarian Bot: Add language metadata for dataset (d35d0ef75ed6637a0b9d79b6d1bae1b3fcc421dc)


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

README.md

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