Setup sass

When I run setup sass my site is now broken and has lost all of its css

When you setup sass, in the index file it will now point to ionic.app.css

<!-- compiled css output -->
<link href="css/ionic.app.css" rel="stylesheet">

Copy over you css from www/css/styles.css into scss/ionic.app.scss or create a new scss file with your custom css and include it in scss/ionic.app.scss