Updated index.html

Author: jonasbuntinx

index.html

@@ -8,19 +8,20 @@
   <link
     href="//code.ionicframework.com/ionicons/2.0.1/css/ionicons.min.css"
     rel="preload"
-    as="style"
-    onload="this.onload=null;this.rel='stylesheet'"
+    media="print"
+    onload="this.media='all'; this.onload=null;"
   />
   <link
     href="//fonts.googleapis.com/css?family=Titillium+Web:700|Source+Serif+Pro:400,700|Merriweather+Sans:400,700|Source+Sans+Pro:400,300,600,700,300italic,400italic,600italic,700italic"
     rel="preload"
-    as="style"
-    onload="this.onload=null;this.rel='stylesheet'"
+    media="print"
+    onload="this.media='all'; this.onload=null;"
   />
   <link
     href="//demo.productionready.io/main.css"
     rel="stylesheet"
     type="text/css"
+    media="all"
   />
 </head>