Documentation not rendered

[dschwoerer]

Two things:

• The Mesh class documentation is missing - I don't know why. It is available in the code.
  Most of the other documentation is rendered, but Mesh is missing.
  Inline help is working, e.g. ?boutcore.Mesh.__init__. Also pydoc3 lists the Mesh section, and shows the help.

• On read the docs, the documentation is completely missing - would it be worth adding a link to a working documentation? E.g. https://omadesala.physics.dcu.ie/bout/user_docs/python_boutcore.html ?

[dschwoerer]

Maybe we can use GHA to build the library, and then import that on read the docs?

https://github.com/actions/upload-artifact

I think it would be easier to build the docs on GHA as well, and then publish the artifacts somewhere ...