JwInf template: Add link to medal source repository

templates/jwinf/base.hbs

@@ -113,11 +113,13 @@
           {{/if}}
         </p>
         <p>
-           <a href="mailto:jwinf@bwinf.de">jwinf@bwinf.de</a>
+           <a href="https://git.bwinf.de/bwinf/medal">Quellcode</a>
            &nbsp;  &nbsp;  ·  &nbsp;  &nbsp;
            <a href="https://bwinf.de/jugendwettbewerb/datenschutz/">Datenschutz</a>
            &nbsp;  &nbsp;  ·  &nbsp;  &nbsp;
            <a href="https://bwinf.de/impressum/">Impressum</a>
+           &nbsp;  &nbsp;  ·  &nbsp;  &nbsp;
+           <a href="mailto:jwinf@bwinf.de">jwinf@bwinf.de</a>
            {{#if teacher}}
            &nbsp;  &nbsp;  ·  &nbsp;  &nbsp;        
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