Template jwinf: Add helper link to login button

templates/jwinf/base.hbs

@@ -68,7 +68,9 @@
             <form action="/clogin" method="post" autocomplete="off" class="columns blogin">
               <!-- <div class=> -->
                 <div class="column is-8"><input class="input is-small" type="text" name="code" placeholder="Gruppencode oder Logincode" autofocus></div>
-                <div class="column"><input class="button is-small is-success" type="submit" value="↪ &nbsp; Login" style="font-weight:bold;"></div>
+                <div class="column"><input class="button is-small is-success" type="submit" value="↪ &nbsp; Login" style="font-weight:bold;">
+                   &nbsp; <a href="https://bwinf.de/jugendwettbewerb/teilnehmen/schueler/" style="font-size: small;"> (?)</a>
+                </div>
               <!-- </div> -->
             </form>
             {{#if self_url}}