Update README.md

README.md

 # AR.js - Augmented Reality for the Web
 
-[![Augmented Website](https://user-images.githubusercontent.com/252962/27472386-0d11e59a-57f3-11e7-9fa5-34332c5484f7.png)](https://github.com/jeromeetienne/AR.js)
+<img src="https://github.com/jeromeetienne/AR.js/blob/master/AR.js-1920-1080-HD.png?raw=true" width="531" height="300" />
+Logo by [Simon Poulter](https://twitter.com/viralinfo)
 
 [![npm](https://img.shields.io/npm/v/ar.js.svg)](https://www.npmjs.com/package/ar.js)
 [![npm](https://img.shields.io/npm/dt/ar.js.svg)](https://www.npmjs.com/package/ar.js)