404: Fix link to the index page

Author: trollixx

404.html

@@ -7,6 +7,6 @@ <h1 class="page-header">{{ page.title }}</h1>
 
   <p class="lead">
     Unfortunately, page you are trying to access does not exist. Check the address string or proceed to our
-    <a href="{{ site.baseurl }}">index page</a>.
+    <a href="{{ site.baseurl }}/">index page</a>.
   </p>
 </div>