add basic react setup

src/main.js

@@ -3,11 +3,13 @@ import 'prismjs/themes/prism-coy.css'
 import DefaultLayout from '~/layouts/Default.vue'
 import Demo from '~/components/Demo'
 import Tab from '~/components/Tab'
+import ReactWrapper from '~/components/ReactWrapper'
 
 export default function (Vue, { router, head, isClient }) {
   Vue.component('Layout', DefaultLayout)
   Vue.component('Demo', Demo)
   Vue.component('Tab', Tab)
+  Vue.component('ReactWrapper', ReactWrapper)
   Vue.filter('highlight', (code, lang = 'javascript') => {
     return Prism.highlight(code, Prism.languages[lang], lang)
   })