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

- Librarian Bot: Add language metadata for dataset (15751f81c5b5e2e6c003822e517ba754cf72ee82)


Co-authored-by: Librarian Bot (Bot) <librarian-bot@users.noreply.huggingface.co>

README.md

@@ -1,3 +1,5 @@
 ---
+language:
+- vi
 license: cc-by-nc-sa-4.0
 ---