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

- Librarian Bot: Add language metadata for dataset (8fd20decc071b65979485cd78e1a2e889a20858f)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 dataset_info:
   features:
   - name: prompt