Add logout button

templates/index.html

@@ -1,7 +1,7 @@
 {% extends 'base.html' %}
 
 {% block content %}
-    <h1>{% block title %} Hallo, {{user["username"]}} ({{user["email"]}}) {% endblock %}</h1>
+    <h1>{% block title %} Hallo, {{user["username"]}} ({{user["email"]}}) {% endblock %}</h1> 
     {% set ns = namespace(last_date='...') %}      
 
     {% for event in events %}