add a simple stupid icon

Author: egoist

README.md

@@ -1,5 +1,6 @@
 <p align="center">
-  <br><strong>VuePack</strong> is a modern Vue.js starter <br>which uses Vue 2, Vuex, Vue-router and Webpack 2.
+  <img src="http://ww4.sinaimg.cn/large/a15b4afegw1f6k20fb3p5j205o05ogli" alt="vuepack" width="60">
+  <br><br><strong>VuePack</strong> is a modern Vue.js starter <br>which uses Vue 2, Vuex, Vue-router and Webpack 2.
 </p>
 
 ## Features