Add ref link

templates/host.html

@@ -3,7 +3,7 @@
 {% block title %}{{ _('about host') }}{% endblock %}
 
 {% block content %}
-  <a href="https://play2go.cloud/" target="_blank" class="block">
+  <a href="https://play2go.cloud/?ref_id=4baFoOIp5QE" target="_blank" class="block">
     <strong>{{ _("host:hoster") }}</strong>: play2go
     <p>{{ _('host:hoster_descr') }}</p>
   </a>