Fix Google font loading over HTTPS

mutalyzer/website/templates/base.html

@@ -10,7 +10,7 @@
     <script src="{{ url_for('static', filename='js/interface.js') }}"></script>
     <script src="{{ url_for('static', filename='js/generator.js') }}"></script>
 
-    <link href="http://fonts.googleapis.com/css?family=Roboto:400,300,300italic,400italic,500,500italic,700,700italic"
+    <link href="//fonts.googleapis.com/css?family=Roboto:400,300,300italic,400italic,500,500italic,700,700italic"
           rel="stylesheet" type="text/css">
 
     <link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='css/bootstrap.min.css') }}" >

mutalyzer/website/templates/name-checker.html

@@ -9,7 +9,7 @@
     <meta http-equiv="X-UA-Compatible" content="IE=edge">
     <meta name="viewport" content="width=device-width, initial-scale=1">
 
-    <link href="http://fonts.googleapis.com/css?family=Roboto:400,300,300italic,400italic,500,500italic,700,700italic"
+    <link href="//fonts.googleapis.com/css?family=Roboto:400,300,300italic,400italic,500,500italic,700,700italic"
           rel="stylesheet" type="text/css">
 
     <link rel="stylesheet" type="text/css" href="{{ url_for('static', filename='css/bootstrap.min.css') }}" >