Added Browser router

src/App.js

@@ -1,5 +1,5 @@
 import React from 'react'
-import { Route } from 'react-router-dom'
+import { BrowserRouter, Route } from 'react-router-dom'
 // import * as BooksAPI from './BooksAPI'
 import Bookshelf from './Bookshelf'
 import SearchPage from './SearchPage'
@@ -18,6 +18,8 @@ class BooksApp extends React.Component {
 
   render() {
     return (
+      <BrowserRouter>
+      
         <div className="app">
 
             <Route exact path='/' render={() => (
@@ -27,12 +29,14 @@ class BooksApp extends React.Component {
             <Route path='/search' render={() => (
               <SearchPage />
             )}/>
-/*
+
             <div className="open-search">
               <a onClick={() => this.setState({ showSearchPage: true })}>Add a book</a>
             </div>
-*/
+
         </div>
+
+      </BrowserRouter>
     )
   }
 }