fix block name in closing tag

shop/templates/epay_form.html

@@ -1,5 +1,6 @@
 {% extends "shop_base.html" %}
 {% load bootstrap3 %}
+
 {% block shop_content %}
 {% bootstrap_javascript jquery=1 %}
 <script charset="UTF-8" src="https://ssl.ditonlinebetalingssystem.dk/integration/ewindow/paymentwindow.js" type="text/javascript"></script>
@@ -23,5 +24,5 @@
         paymentwindow.open();
     });
 </script>
-{% endblock content %}
+{% endblock shop_content %}