Added yeoman image as default view.

src/components/Main.js

@@ -3,11 +3,14 @@ require('styles/App.css');
 
 import React from 'react/addons';
 
+let yeomanImage = require('../images/yeoman.png');
+
 class AppComponent extends React.Component {
   render() {
     return (
       <div className="index">
-        Content
+        <img src={yeomanImage} alt="Yeoman Generator" />
+        <div className="notice">Please edit <code>src/components/Main.js</code> to get started!</div>
       </div>
     );
   }