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

- Librarian Bot: Add language metadata for dataset (b1a53b184ac811c8d5e5eb74c93a0f56a8b63f5e)


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

README.md

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