Added disqus template.

layouts/partials/disqus.html

@@ -0,0 +1,15 @@
+{{ if ne .Params.comments false}}
+{{ if .Site.DisqusShortname }}
+<div id="disqus_thread"></div>
+<script type="text/javascript">
+  var disqus_shortname = '{{ .Site.DisqusShortname }}';
+  var disqus_url = '{{ .Permalink }}';
+  (function() {
+    var dsq = document.createElement('script'); dsq.type = 'text/javascript'; dsq.async = true;
+    dsq.src = '//' + disqus_shortname + '.disqus.com/embed.js';
+    (document.getElementsByTagName('head')[0] || document.getElementsByTagName('body')[0]).appendChild(dsq);
+  })();
+</script>
+<noscript>Please enable JavaScript to view the <a href="https://disqus.com/?ref_noscript">comments powered by Disqus.</a></noscript>
+{{ end }}
+{{ end }}