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

- Librarian Bot: Add language metadata for dataset (bda20da06538954705552473434d2dd40929cf43)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- cs
 dataset_info:
   features:
   - name: title