remove http in font web file

css/main.scss

@@ -5,7 +5,7 @@ $colortheme: {{ site.color_theme }};
 $colortext: {{ site.color_text }};
 $baseurl: '{{ site.baseurl }}';
 
-@import url(http://fonts.googleapis.com/css?family=Raleway);
+@import url(//fonts.googleapis.com/css?family=Raleway);
 @import "base";
 @import "menu";
 @import "header";