Publish Sphinx Python API

First, I'd like to say that I am quite impressed when it comes to the details in the doc-strings of the GMSH Python API.

However, it seems like it is not available online anywhere (except within the actual source code).

I would be amazing if one could publish the API online, for instance by using autodoc (https://www.sphinx-doc.org/en/master/usage/extensions/autodoc.html) from Sphinx. This in turn means that other projects could use intersphinx (https://www.sphinx-doc.org/en/master/usage/extensions/intersphinx.html) to directly reference the GMSH API in their web-pages.