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

- Librarian Bot: Add language metadata for dataset (2ea0001cc198977daf5833b73874539a0175b39c)


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

README.md

@@ -1,3 +1,5 @@
 ---
+language:
+- en
 license: apache-2.0
 ---