routing works

react-tuto/src/index.js

@@ -24,7 +24,6 @@ class App extends React.Component {
     return (
       <div>
         <Page title={markdown.part1[0].title} md={markdown.part1[0].content} />
-        <Page title={markdown.part1[1].title} md={markdown.part1[1].content} />
       </div>
 
     );
@@ -35,7 +34,9 @@ class App extends React.Component {
 class MarkdownPage extends React.Component {
   render() {
     return (
-      <ReactMarkdown source={input} />
+      <div>
+      <Page title={markdown.part1[1].title} md={markdown.part1[1].content} />
+      </div>
     );
   }
 }
@@ -48,7 +49,7 @@ ReactDOM.render(
           <li><Link to="/md">Md</Link></li>
         </ul>
         <Switch>
-          <Route path="/" component={App} />
+          <Route exact path="/" component={App} />
           <Route path="/md" component={MarkdownPage} />
         </Switch>
       </div>