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

- Librarian Bot: Add language metadata for dataset (a0169e6a24df2768d8d9ff2e68a8df406a12e509)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- en
 license: unknown
 ---