Port one tutorial repo to myst

[bsipocz]

I open this here for the summit, as we could pick and choose the simplest tutorials repo to be the tryout and then think about templating for the other ones.

Options:

• numpy tutorials: Switching over to mystjs numpy/numpy-tutorials#219
• nx guides: https://github.com/networkx/nx-guides/

something topical we have full control over, I'm happy to offer any of these as playing grounds:

• NASA navo notebooks: https://github.com/NASA-NAVO/navo-workshop
• irsa tutorials: https://github.com/Caltech-IPAC/irsa-tutorials/

[danielballan]

Following up on past chats with @bsipocz I took a crack at a template for MyST-based tutorial content that can be used interactively with Binder or Jupyter Lite. https://github.com/danielballan/interactive-tutorial-demo

I am interested in collaborating on a template like this, promoting it to the scientific-python org, and linking it from https://learn.scientific-python.org/development/.