add chinese language to the dropdown

src/i18n/index.js

@@ -4,6 +4,10 @@ import { initReactI18next } from 'react-i18next';
 import resources from './locales';
 
 const languages = [
+  {
+    code: 'zh',
+    name: 'Chinese',
+  },
   {
     code: 'en',
     name: 'English',