old_contents: from daisyproducer.documents.models import Document
  from django.contrib import admin
  
  admin.site.register(Document)
  
new_contents: from daisyproducer.documents.models import Document
  from django.contrib import admin
  
  class DocumentAdmin(admin.ModelAdmin):
          list_display = ('title', 'author', 'publisher')
          list_filter = ('author', 'publisher')
          ordering = ('title',)
          search_fields = ('title',)
  
  admin.site.register(Document,DocumentAdmin)
  
subject: Enhance the admin display of Documents