test graphics

it4i_theme/header.html

@@ -20,6 +20,7 @@
           </span>
         {% endif %}
         {{ page_title | default(site_name, true) }}
+ <img src="{{ base_url }}/{{ config.extra.logo }}">
       </div>
     </div>
       <div class="button button-github" role="button" aria-label="GitHub">