old_contents: from django.conf.urls import url
  
  from . import views
  
  urlpatterns = [
      url(r'^$', views.index, name='index'),
      url(r'^$', views.manage_users, name='manage_users')
  ]
  
new_contents: from django.conf.urls import url
  
  from . import views
  
  urlpatterns = [
      url(r'^$', views.index, name='index'),
      url(r'^manage_users/$', views.manage_users, name='manage_users'),
  ]
  
subject: add manage users url to web frontend