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

- Librarian Bot: Add language metadata for dataset (aa0f9b0e7d0103edeb809de201dbc5f474d0f08e)


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

README.md

@@ -0,0 +1,4 @@
+---
+language:
+- en
+---