Added signup page link.

go/templates/not_registered.html

@@ -9,6 +9,11 @@ Go - About
 {% block content %}
 <h3>~Account Not Approved~</h3>
 
+<p>
+If you have not done so, you may <a href="{% url 'signup' %}">sign up</a>
+for an account.
+</p>
+
 <p>
 Because Go allows users to represent their group or organization with
 George Mason branding, user accounts must be manually approved by a Go