`doc/reference/settings.md` django project link 404s

[eichin]

doc/reference/settings.md links to django docs to explain settings in more detail:

happens in [Django](https://docs.djangoproject.com/en/1.9/topics/settings/).

That link is 404 - looks like they do keep docs that old but go directly from 1.8 to 1.10; current is 5.0 and if you change the link to https://docs.djangoproject.com/en/5.0/topics/settings/ or even 1.10 https://docs.djangoproject.com/en/1.10/topics/settings/ you end up with a plausible looking page.

(This is mostly a driveby - I was actually trying to figure out why settings.py works in enricozini-site but gets treated as an asset in mine, and the django page doesn't help with that. But at least it should work.)