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

- Librarian Bot: Add language metadata for dataset (38de38715b33e37c892c659d98dc72871add63cf)


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

README.md

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