old_contents: from django.conf.urls import url
  
  from . import views
  
  
  app_name = 'main'
  urlpatterns = [
      # /
      url(r'^$', views.get_index, name='index'),
  
      # /about/
      url(r'^about/$', views.get_about, name='about'),
  ]
  
new_contents: from django.conf.urls import url
  
  from . import views
  
  
  app_name = 'main'
  urlpatterns = [
      # /
      url(r'^$', views.get_index, name='index'),
  
      # /about/
      url(r'^about/$', views.get_about, name='about'),
  
      # /teams/
      url(r'^teams/$', views.get_teams, name='teams'),
  ]
  
subject: add teams url