old_contents: from django.contrib import admin
  
  from .models import Team, Job, Mentor, Meetup, Coworking, Post, Event
  
  admin.site.register(Team)
  admin.site.register(Job)
  admin.site.register(Mentor)
  admin.site.register(Meetup)
  admin.site.register(Coworking)
  admin.site.register(Post)
  admin.site.register(Event)
  
new_contents: from django.contrib import admin
  
  from .models import Team, Job, Mentor, Meetup, Coworking, Post, Event, Application
  
  admin.site.register(Team)
  admin.site.register(Job)
  admin.site.register(Mentor)
  admin.site.register(Meetup)
  admin.site.register(Coworking)
  admin.site.register(Post)
  admin.site.register(Event)
  admin.site.register(Application)
  
subject: add application on admin