old_contents: from django.conf.urls import include, url
  
  from tutorials import views
  
  urlpatterns = [
      url(r'^$', views.ListTutorials.as_view()),
      url(r'^(?P<tutorial_id>[\w\-]+)/$', views.TutorialDetail.as_view()),
  ]
new_contents: from django.conf.urls import include, url
  from markdownx import urls as markdownx
  
  from tutorials import views
  
  urlpatterns = [
      url(r'^$', views.ListTutorials.as_view()),
      url(r'^(?P<tutorial_id>[\w\-]+)/$', views.TutorialDetail.as_view()),
      # this not working correctly - some error in gatherTutorials
      url(r'/add/', views.NewTutorial.as_view(), name='add_tutorial'),
      url(r'^markdownx/', include(markdownx)),
  ]
subject: Add markdownx url, Add add-tutrorial url