Allow for both http and https URIs
diff --git a/templates/article.html b/templates/article.html
index 1525656..e094c52 100644
--- a/templates/article.html
+++ b/templates/article.html
@@ -67,7 +67,7 @@
            var disqus_identifier = "{{ article.url }}";
            (function() {
            var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
-           dsq.src = 'http://{{ DISQUS_SITENAME }}.disqus.com/embed.js';
+           dsq.src = '//{{ DISQUS_SITENAME }}.disqus.com/embed.js';
            (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
           })();
         </script>