Fixed #25083 -- Added SessionAuthenticationMiddleware to auth installation docs

   </ref/contrib/contenttypes>`, which allows permissions to be associated with

   models you create.

and two items in your :setting:`MIDDLEWARE_CLASSES` setting:

and these items in your :setting:`MIDDLEWARE_CLASSES` setting:

1. :class:`~django.contrib.sessions.middleware.SessionMiddleware` manages

   :doc:`sessions </topics/http/sessions>` across requests.

2. :class:`~django.contrib.auth.middleware.AuthenticationMiddleware` associates

   users with requests using sessions.

3. :class:`~django.contrib.auth.middleware.SessionAuthenticationMiddleware`

   logs users out of their other sessions after a password change.

With these settings in place, running the command ``manage.py migrate`` creates

the necessary database tables for auth related models and permissions for any