added content to event-add.html

widget_aguandhischipmunks/calendar_app/templates/event-add.html

+{% extends 'base.html'%}
+
+{% block title %}
+    Add a new Activity
+{% endblock %}
+
+{% block content %}
+<p>Add a new assignment:</p>
+    <form method="post">
+        {% csrf_token %}
+        {{ form.as_p }}
+        <button type="submit">Save New Activity</button>
+  </form>
+{% endblock %}