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

- Librarian Bot: Add language metadata for dataset (29c85352878434b821951bc6e6fb76064f69baad)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 license: apache-2.0
 configs:
 - config_name: default