notes.rst

admin.site.site_header = "library admin"
admin.site.site_title = "library admin portal"
admin.site.index_title = "Welcome to library admin portal"

Sorting Models By Frequency

https://github.com/mishbahr/django-modeladmin-reorder

Customize Header/Title

    admin.site.site_header = 'My administration'

show filtered page first

def get_default_filters(self, request):

https://docs.djangoproject.com/en/2.1/ref/contrib/admin/#django.contrib.admin.ModelAdmin.readonly_fields