I'm documenting a Djagno 2.2 application.
The Django documentation states linking to the settings as
Add :mod:`django.contrib.auth` to your :setting:`INSTALLED_APPS`...
In my documentation, The statement is
The length is defined in the :setting:`URL_ID_LENGTH`
When generating the documentation using Sphinx
make html
Gives WARNING
:docstring of app.models.Class.function:4: WARNING: Unknown interpreted text role "setting".
I have sphinx.ext.intersphinx added to the conf.py of Sphinx.