docs: def _media(self):
          """
          The medias needed to enhance the admin page.
          """
          def static_url(url):
              return staticfiles_storage.url('zinnia_markitup/%s' % url)
  
          media = super(EntryAdminMarkItUpMixin, self).media
  
          media += Media(
              js=(static_url('js/jquery.min.js'),
                  static_url('js/markitup/jquery.markitup.js'),
                  static_url('js/markitup/sets/%s/set.js' % (
                      settings.MARKUP_LANGUAGE)),
                  reverse('admin:zinnia_entry_markitup')),
              css={'all': (
                  static_url('js/markitup/skins/django/style.css'),
                  static_url('js/markitup/sets/%s/style.css' % (
                      settings.MARKUP_LANGUAGE)))}
          )
          return media