Tweak contents page

Author: Mark Gibbs

demo/demo/templates/index.html

@@ -1,7 +1,7 @@
 {%extends "base.html"%}
 {%block title%} Index{%endblock%}
 {%block content%}
-<h1>django-plotly-dash demonstration application</h1>
+<h1>Demonstration Application</h1>
   <div>
     This is the django_plotly_dash demo application. It contains a number of separate pages that
     exhibit different features of the integration of Plotly Dash into the Django framework.