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

- Librarian Bot: Add language metadata for dataset (0b80eb60e8dadef5345fb0d0169e1a677c4d79ce)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- de
 dataset_info:
   features:
   - name: text