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

- Librarian Bot: Add language metadata for dataset (3a90525c39ccb7b09212b3a1abadb47e9e5f2e70)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 license: unknown
 configs:
 - config_name: default