text: // Fichero src/index.js (código nuevo)
  
  import React from 'react';
  import ReactDOM from 'react-dom';
  import { HashRouter } from 'react-router-dom';
  import App from './components/App';
  
  ReactDOM.render(
    <HashRouter>
      <App />
    </HashRouter>,
    document.getElementById('root')
  );
  