Add dwolla donation image

templates/donate/index.html

@@ -1,11 +1,15 @@
 {% extends 'base_simple.html'%}
+{%load static %}
+{% get_static_prefix as STATIC_PREFIX %}
 
 {% block content %}
 <p>Donating to caminus helps keep us alive!</p>
 <p>All donations recieve 2000gr per $1 USD. You must be logged in before donating to recieve this.</p>
+<p>Donations are handled through <a href="http://dwolla.com/">Dwolla</a></p>
 <form method="POST">
 {{form.as_p}}
 {%csrf_token%}
 <input type="submit"/>
 </form>
+<img src="{{STATIC_PREFIX}}/images/dwolla.png" alt="We accept Dwolla"/>
 {% endblock %}