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

- Librarian Bot: Add language metadata for dataset (09090735eec3777348a45afbde5ed2a4e846f319)


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

README.md

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