Add multilingual to the language tag (#1)

- Add multilingual to the language tag (695f1e6c4f1369e3e633b6f1bc63a1eee92d5718)


Co-authored-by: Loïck BOURDOIS <lbourdois@users.noreply.huggingface.co>

README.md

@@ -1,8 +1,9 @@
 ---
-license: mpl-2.0
 language:
-  - en
-  - code
+- en
+- code
+- multilingual
+license: mpl-2.0
 ---
 
 ## PythonGPT