Enh: pure python package in our packaging guide should use our copier template -

[lwasser]

We have wonderful ways of including pyproject.toml and other snippet in our packaging guide thans to @ucodery . I think that we should overhaul the package examples using

1. A pure Python package, minimal - created from our template!
2. A pure python package "full" - created from our template.

Then, as we discuss the section here, we can reference the items in our template in this guide. I think this will make the guide a lot more streamlined, and it will be easy to update package examples as we update the template.