Fix logo image link

Signed-off-by: Aravinda VK <[email protected]>

Author: aravindavk

_includes/header.html

@@ -3,7 +3,7 @@
     <div class="pure-g">
 
       <div class="pure-u-1 pure-u-md-2-3">
-          <a class="site-title" rel="author" href="{{ "/" | relative_url }}"><img src="/images/gluster-ant.png">{{ site.title | escape }}</a>
+          <a class="site-title" rel="author" href="{{ "/" | relative_url }}"><img src="{{ site.baseurl }}/images/gluster-ant.png">{{ site.title | escape }}</a>
       </div>
       <div class="pure-u-1 pure-u-md-1-3">
           <a class="write-for-gluster" href="{{ site.baseurl }}/write-for-gluster">Write for Gluster</a>