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

- Librarian Bot: Add language metadata for dataset (293d67b83568941addfa7a8d62dd60b56e8df57f)


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

README.md

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