Update main.php

Updates Bootstrap to 3.3.2

main.php

@@ -5,7 +5,7 @@
 <meta charset="UTF-8">
 <meta name="viewport" content="width=device-width, initial-scale=1.0">
 <meta name="apple-mobile-web-app-capable" content="yes">
-<link href="//netdna.bootstrapcdn.com/bootswatch/3.2.0/flatly/bootstrap.min.css" rel="stylesheet">
+<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.2/css/bootstrap.min.css" rel="stylesheet">
 <!--[if lt IE 9]>
       <script src="https://oss.maxcdn.com/libs/html5shiv/3.7.0/html5shiv.js"></script>
       <script src="https://oss.maxcdn.com/libs/respond.js/1.3.0/respond.min.js"></script>