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

- Librarian Bot: Add language metadata for dataset (40d8e616206af46571885af5158a14adb9da9e31)


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

README.md

@@ -1,4 +1,6 @@
 ---
+language:
+- ru
 license: apache-2.0
 ---