simple upgrade/billing address form

rowers/urls.py

@@ -438,6 +438,7 @@ urlpatterns = [
     url(r'^analysis/$', views.analysis_view,name='analysis'),
     url(r'^laboratory/$', views.laboratory_view,name='laboratory'),
     url(r'^promembership', TemplateView.as_view(template_name='promembership.html'),name='promembership'),
+    url(r'^billing',views.billing_view,name='billing'),
     url(r'^paidplans',views.paidplans_view,name='paidplans'),
     url(r'^checkouts',views.checkouts_view,name='checkouts'),
     url(r'^payments',views.payments_view,name='payments'),