There was an earlier post about migrating the repo to Git, and about migrating the docs to Sphinx. It seems the part about migrating the documentation to Sphinx was lost in the debate over VCS.
Is there interest in overhauling the documentation and website to be generated from Sphinx? I am happy to help with this work, if it of interest to those involved. I don't think it would take more than a day, perhaps with an online hack day dedicated to the cause.