text: import React from 'react';
  import ReactDOM from 'react-dom';
  import './index.css';
  import * as serviceWorker from './serviceWorker';
  
  import App from './components/App';
  import Firebase, { FirebaseContext } from './components/Firebase';
  
  ReactDOM.render(
    <FirebaseContext.Provider value={new Firebase()}>
      <App />
    </FirebaseContext.Provider>,
    document.getElementById('root'),
  );
  serviceWorker.unregister();
  
  