styles: Load site CSS first

This should help content to render faster for the user

Author: gonX

site/_includes/styles.html

@@ -1,3 +1,3 @@
-<link rel="stylesheet" href="{% asset /css/rougehl.css %}">
 <link rel="stylesheet" href="{% scssasset /css/site.scss %}">
+<link rel="stylesheet" href="{% asset /css/rougehl.css %}">
 <link rel="stylesheet" href="{% asset /css/fix-fouc.css %}">