use non-minified Bootstrap CSS on non-gh-pages

docs/_includes/header.html

@@ -14,7 +14,11 @@
 </title>
 
 <!-- Bootstrap core CSS -->
+{% if site.github %}
 <link href="../dist/css/bootstrap.min.css" rel="stylesheet">
+{% else %}
+<link href="../dist/css/bootstrap.css" rel="stylesheet">
+{% endif %}
 {% if page.slug == "css" or page.slug == "components" or page.slug == "js" %}
   <!-- Optional Bootstrap Theme -->
   <link href="data:text/css;charset=utf-8," data-href="../dist/css/bootstrap-theme.min.css" rel="stylesheet" id="bs-theme-stylesheet">