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

- Librarian Bot: Add language metadata for dataset (9bc9bed495e877ae3661adecfc4c683ef6d59866)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 license: cc0-1.0
 size_categories:
 - n<1K