chore: add missing comma in README.md config example

README.md

@@ -41,7 +41,7 @@ npx nuxi@latest module add i18n
     locales: [
       { code: 'en', language: 'en-US' },
       { code: 'fr', language: 'fr-FR' }
-    ]
+    ],
     defaultLocale: 'en',
   }
 }