graph.html links to graph.svg

rainboard/templates/rainboard/graph.html

@@ -2,5 +2,7 @@
 
 {% block content %}
 <h1>Graph</h1>
+<a href="{% url 'rainboard:graph_svg' %}">
 <img src="{% url 'rainboard:graph_svg' %}" alt="graph" />
+</a>
 {% endblock %}