old_contents: import React from 'react'
  import ReactDOM from 'react-dom'
  import { Provider } from 'react-redux'
  import { createStore } from 'redux'
  import welcomeReducer from './Welcome/reducers'
  import Welcome from './Welcome'
  import registerServiceWorker from './registerServiceWorker'
  import 'semantic-ui-css/semantic.min.css'
  import './index.css'
  
  let store = createStore(welcomeReducer)
  
  ReactDOM.render(
    <Provider store={store}><Welcome /></Provider>,
    document.getElementById('root')
  )
  registerServiceWorker()
  
new_contents: import React from 'react'
  import ReactDOM from 'react-dom'
  import { Provider } from 'react-redux'
  import { createStore } from 'redux'
  import welcomeReducer from './Welcome/reducers'
  import Welcome from './Welcome'
  import registerServiceWorker from './registerServiceWorker'
  import 'semantic-ui-css/semantic.min.css'
  import './index.css'
  
  let store = createStore(welcomeReducer)
  
  ReactDOM.render(
    <Provider store={store}><Welcome /></Provider>,
    document.getElementById('root')
  )
  registerServiceWorker()
  
  if (module.hot) {
    module.hot.accept()
  }
  
subject: Add hot module reload