Fix comments

Author: leopardpan

_includes/comments.html

@@ -2,9 +2,8 @@
 
   {% if site.comment.uyan %}
     <div id="uyan_frame"></div>
-    var uyan_shortname = '{{ site.comment.uyan }}';
 
-    <script type="text/javascript" src="http://v2.uyan.cc/code/uyan.js?uid="+uyan_shortname></script>
+    <script type="text/javascript" src="http://v2.uyan.cc/code/uyan.js?uid="+'{{ site.comment.uyan }}'></script>
 
   {% elsif site.comment.disqus %}
     <div id="disqus_thread"></div>