Fix Button on main page

app/templates/main.html

@@ -3,7 +3,7 @@
 {% extends 'base.html' %}
 {% block title %}Warteliste{% endblock %}
 {% block content %}
-<button id="bfb" role="button" class="btn btn-primary btn-lg btn-block mb-2" href="/list">Eintragen</button>
+<a id="bfb" role="button" class="btn btn-primary btn-lg btn-block mb-2" href="/list">Eintragen</a>
 <table class="table"
         data-toggle="table"
         data-url="/api/queue"