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

- Librarian Bot: Add language metadata for dataset (45fef340043db7b1ae35c10ea5674f1bb958944d)


Co-authored-by: Librarian Bot (Bot) <[email protected]>

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 license: apache-2.0
 dataset_info:
   features: