old_contents: from django.contrib import admin
  from .models import Link
  
  
  class LinkAdmin(admin.ModelAdmin):
      list_display = ('title', 'website')
      search_fields = ['title, website']
  
  
  admin.site.register(Link, LinkAdmin)
  
new_contents: from django.contrib import admin
  from .models import Link, LinkCategory
  
  
  class LinkAdmin(admin.ModelAdmin):
      list_display = ('title', 'category', 'website')
      search_fields = ['title']
  
  
  admin.site.register(Link, LinkAdmin)
  admin.site.register(LinkCategory)
subject: Configure Categories