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

- Librarian Bot: Add language metadata for dataset (86ad30c0564e523d7e50711b35545f513990b540)


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

README.md

@@ -1,3 +1,5 @@
 ---
+language:
+- en
 license: apache-2.0
 ---