vagrant test

it4i_theme/header.html

@@ -23,7 +23,7 @@
       </div>
     </div>
       <div class="button button-github" role="button" aria-label="GitHub">
-	<a href="https://gitlab.it4i.cz/kru0052/docs.it4i" target="_blank" class="toggle-button icon icon-github"><img border="0" alt="gitlab" src="img/gitlab.png" width="30" height="30"></a>
+        <a href="https://gitlab.it4i.cz/kru0052/docs.it4i" title="@{{ author }} on GitLab" target="_blank" class="toggle-button icon icon-github"></a>
       </div>
     <div class="button button-search" role="button" aria-label="Search">
       <label class="toggle-button icon icon-search" title="Search" for="toggle-search"></label>