old_contents: // Start up Redux
  import React from 'react';
  import ReactDOM from 'react-dom';
  
  import App from './components/App';
  
  ReactDOM.render(<App />, document.querySelector('#root'));
  
new_contents: // Start up Redux
  import React from 'react';
  import ReactDOM from 'react-dom';
  import { Provider } from 'react-redux';
  import { createStore, applyMiddleware } from 'redux';
  
  import App from './components/App';
  
  const store = createStore(() => [], {}, applyMiddleware());
  
  ReactDOM.render(
   <Provider store={store}><App /></Provider>,
    document.querySelector('#root')
  );
  
  
  
subject: create store