fix css

Author: willdurand

_layouts/default.html

@@ -10,7 +10,7 @@
         <title>{{ site.name }} - {{ site.description }}</title>
         {% endif %}
         <link rel="stylesheet" href="/css/main.css">
-        <link rel="stylesheet" href="/css/pygment-trac.css">
+        <link rel="stylesheet" href="/css/pygment.css">
         <!--[if !IE]><!-->
         <link rel="stylesheet" href="/css/responsive-table.css">
         <!--<![endif]-->