change in new lib

Author: dreamwasp

packages/eslint-config/rules/mdx.js

@@ -3,7 +3,7 @@ const mdxConfig = {
   files: ['*.mdx'],
   parser: 'eslint-mdx',
   rules: {
-    'react/jsx-filename-extension': 'off',
+    'react/jsx-filename-extension': 'on',
     'react/no-unescaped-entities': 'off',
     'react/react-in-jsx-scope': 'off',
     'unused-imports/no-unused-imports': 'error',