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

- Librarian Bot: Add language metadata for dataset (a7aaf5641c08dae132f37260cef79eb71487926d)


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

README.md

@@ -1,7 +1,6 @@
 ---
-# For reference on dataset card metadata, see the spec: https://github.com/huggingface/hub-docs/blob/main/datasetcard.md?plain=1
-# Doc / guide: https://huggingface.co/docs/hub/datasets-cards
-{}
+language:
+- en
 ---
 
 # Dataset Card for Dataset Name