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

- Librarian Bot: Add language metadata for dataset (67ee5e782774e7f071f240d0126ab2b6940b1532)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 license: apache-2.0
 ---
 ## ! This is the BIG version of "entity_extend_triples-small"