making sure font-awesome is loaded correctly

Playground/indexStable.html

@@ -8,6 +8,7 @@
         <link rel="shortcut icon" href="https://www.babylonjs.com/img/favicon/favicon.ico">
 
         <link rel="stylesheet" href="https://use.typekit.net/cta4xsb.css" />
+        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.6.3/css/font-awesome.min.css" />
         <link rel="stylesheet" href="/css/index.css" />
         <link rel="stylesheet" href="/css/index_mobile.css" />
 

Playground/indexWebGPU.html

@@ -8,6 +8,7 @@
         <link rel="shortcut icon" href="https://www.babylonjs.com/favicon.ico">
 
         <link rel="stylesheet" href="https://use.typekit.net/cta4xsb.css" />
+        <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/font-awesome/4.6.3/css/font-awesome.min.css" />
         <link rel="stylesheet" href="/css/index.css" />
         <link rel="stylesheet" href="/css/index_mobile.css" />