[addition] List common mistakes/antipatterns

[henryiii]

We should list a few things that you should not do, like using setup.py directly, especially not setup.py test, which is discouraged and deprecated. Maybe include common mistakes, like accidentally included the "tests" folder in the install (or maybe even the SDist).

[eduardo-rodrigues]

Hi @henryiii, I wonder if this is not effectively done via all the developer pages you have prepared? If so, better close and "clean-up".

[henryiii]

This would be a developer pages addition with "antipatterns", which we don't have yet. Or maybe each page could end with antipatterns?

[eduardo-rodrigues]

I would actually go with antipatterns related that the various devel pages, yes. This way a person can see the examples while being made aware of what are bad practices. A single page may be too much of a mix and less clear in the end.