generating Sphinx docs + Jupyter Book

[asemposki]

Building both a Sphinx docs page and a Jupyter Book from the same GitHub repo is not allowed with GitHub Actions since one repo can only possess one domain. Jared looked at a few options for a workaround that won't be too cumbersome to implement and/or maintain, and one of the better ones is to build the Sphinx docs through Read The Docs, so that we can build the Jupyter Book from the repo. This seems to be relatively straightforward once you get through allowing Read the Docs all of the permissions it will need. Then the Book can be deployed using Actions, and we can point to the Book domain in our documentation for the interested user. The Book would then also not be on a separate, stripped branch, as it is now. I will start working on a branch that does this Jupyter Book building, and Jared will work on the Sphinx Docs through Read the Docs.

The toy repo that Jared set up to test these ideas is below, which we can implement here.
https://github.com/jared321/MyJBook/tree/main