Restructuring https://learn.scientific-python.org

[juanis2112]

The Learn.ScientificPython.org website has two main guides: the Development Guide and the Contributor Guide . There’s also a Community Guide, but it’s hidden since it’s not finished yet.

We have new content coming, like accessibility guidelines, and we need to figure out how to organize it. Should we create a new Documentation Guide or add it to an existing one? If we make a new guide, what other content should go there?

This was originally created at https://discuss.scientific-python.org/t/restructuring-https-learn-scientific-python-org/1773.

[drammock]

This issue and also #1 are starting to feel like sub-issues of #9. Mentioning it here mostly to add xrefs