Minor changes

app/templates/main.html

@@ -3,6 +3,7 @@
 {% extends 'base.html' %}
 {% block title %}Home{% endblock %}
 {% block content %}
+<a role="button" class="btn btn-primary btn-lg btn-block" href="/list">Eintragen</a>
 <table class="table">
     <thead>
         <tr>