src/index.js
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App';
import { Provider } from 'react-redux'
import { createStore } from 'redux'
import reducer from './store/reducers/reducer'
const store = createStore(reducer)
const app = (
<Provider store={store}>
<App />
</Provider>
)
ReactDOM.render( app, document.getElementById('root'));