The top layer of our React app, wrapped in a Provider so we can access the counter in our Redux store.

index.js

import React from 'react';
import {render} from 'react-dom';
import App from './components/App.jsx';
import {Provider} from 'react-redux';
import store from './reducers/counterReducer';

render(
  <Provider store={store}>
    <App />
  </Provider>, 
  document.getElementById('root')
);