created event-add template

widget_princessgabi/widget_calendar/templates/widget_calendar/event-add.html

+{%extends 'base.html'%}
+
+{% block title %}Add Activity{% endblock %}
+
+{% block header %}
+<h2>Add a new activity:</h2>
+{% endblock %}
+
+{% block body %}
+{% block content %}
+<div class="form">
+    <form method="POST" action="">
+        {% csrf_token %}
+        {{form}}
+        <input type="Submit" value="Save New Activity">
+    </form>
+
+</div>
+{% endblock %}
+{% endblock %}
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