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

- Librarian Bot: Add language metadata for dataset (a265af113d365250caaad000a54d05a5850bccad)


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

README.md

@@ -1,3 +1,6 @@
 ---
+language:
+- vi
+- en
 license: mit
 ---