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

- Librarian Bot: Add language metadata for dataset (ac20de1650d6dfedac4aac6d017b7b9a788bef64)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 license: cc-by-nc-sa-4.0
 dataset_info:
   features: