Make all references HTTPS
diff --git a/templates/base.html b/templates/base.html
index 437d3ac..e177007 100644
--- a/templates/base.html
+++ b/templates/base.html
@@ -11,7 +11,7 @@
   {% assets filters="pyscss,cssmin", output="css/style.%(version)s.min.css", "css/style.scss", "css/pygments.css" %}
   <link rel="stylesheet" type="text/css" href="{{ SITEURL }}/{{ ASSET_URL }}">
   {% endassets %}
-  <link href="//maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">
+  <link href="https://maxcdn.bootstrapcdn.com/font-awesome/4.2.0/css/font-awesome.min.css" rel="stylesheet">
 
   {% if FEED_ALL_ATOM %}
   <link href="{{ FEED_DOMAIN }}/{{ FEED_ALL_ATOM }}" type="application/atom+xml" rel="alternate" title="{{ SITENAME }} Full Atom Feed" />