absolute url

_includes/tips.html

@@ -4,7 +4,7 @@
   <article class="list-post tips">
     <header class="list-post-header tips">
       <h2 class="list-post-title">
-        <a href="{{ post.url | relative_url }}">{{ post.title | escape }}</a>
+        <a href="{{ post.url | absolute_url }}">{{ post.title | escape }}</a>
       </h2>
     </header> 
     <small class="list-meta">