Update Font Awesome Link

Updated the link to Font Awesome Icons.

week.html.tmpl

@@ -31,14 +31,10 @@
     <link href='http://fonts.googleapis.com/css?family=Lato:300,400,700' rel='stylesheet' type='text/css'>
     <link rel="stylesheet" href="css/main.css">
     
-    <!-- Font Awesome site kit links -->
-    
-    <!-- If you have a pro license -->
-    <script src="https://kit.fontawesome.com/20f41d8eed.js" crossorigin="anonymous"></script>
-   
+    <!-- Font Awesome Icon links -->
     <!-- Free license -->
-    <!-- <script src="https://kit.fontawesome.com/b527f43d5a.js" crossorigin="anonymous"></script> -->
-
+    <link rel="stylesheet" href="https://use.fontawesome.com/releases/v5.14.0/css/all.css" integrity="sha384-HzLeBuhoNPvSl5KYnjx0BT+WB0QEEqLprO+NBkkk5gbc67FTaL7XIGa2w1L0Xbgc" crossorigin="anonymous">
+    
     <!-- Script -->
     <script src="js/modernizr-2.6.2.min.js"></script>
     <script src="js/checkdiff.js"></script>