message: docs(react): remove React.StrictMode
diff: @@ -8,11 +8,9 @@ import App from './App'
  import './index.styl'
  ReactDOM.render(
  - <React.StrictMode>
  <HashRouter>
  <App />
  - </HashRouter>
  - </React.StrictMode>,
  + </HashRouter>,
  document.getElementById('root')
  )
  