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

- Librarian Bot: Add language metadata for dataset (65e83643bf452b0a0c71a7f76d617219427d850c)


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

README.md

@@ -1,3 +1,6 @@
 ---
+language:
+- en
+- si
 license: apache-2.0
 ---