Add Gitlab to organisers profile

Author: adrianmoisey

layouts/shortcodes/list_organizers.html

@@ -40,6 +40,9 @@ <h6 class="card-subtitle mb-2 text-muted">{{ .employer }}</h6>
                 {{- if .github -}}
                     <a href = "http://github.com/{{ .github }}"><i class="fa fa-github fa-2x" aria-hidden="true"></i></a>&nbsp;
                 {{- end -}}
+                {{- if .gitlab -}}
+                    <a href = "https://gitlab.com/{{ .gitlab}}"><i class="fa fa-gitlab fa-2x" aria-hidden="true"></i></a>&nbsp;
+                {{- end -}}
             </div>
           </div>
         </div>