text: import React from 'react';
  import ReactDOM from 'react-dom';
  import 'bootstrap/dist/css/bootstrap.css';
  import App from './App';
  import registerServiceWorker from './registerServiceWorker';
  import { createStore } from "redux";
  import { Provider } from "react-redux";
  import reducer from "./reducer"
  import { BrowserRouter } from 'react-router-dom'
  
  let store = createStore(reducer, window.__REDUX_DEVTOOLS_EXTENSION__ &&
    window.__REDUX_DEVTOOLS_EXTENSION__())
  
  ReactDOM.render(
    <Provider store={store}>
      <BrowserRouter>
        <App/>
      </BrowserRouter>
    </Provider>
    , document.getElementById('root'));
  registerServiceWorker();
  