SEO (search engine optimization) for the repo & docs

Currently the latest & greatest i.e. Python 3 / GitHub cf-python (either the repo or the docs) is not easy to access via a search via a search engine. Most initial-page links are relevant & will eventually get you there, but it's still a bit of a windy road to the latest repo or docs, which is concerning not only for visibility but because users might assume only the Python 2 version exists as that is featured in most of the top links.

This is particularly with Google which is what most will use (~70-90% market share from a quick check - via Google search!):

github.com › NCAS-CMS › cf-python doesn't even show up on the first 5 pages.

A bump up the listings may just require a tweak to the conf.py settings for building the documentation to change the title & meta-tags, or something a bit more involved. Or we could instead ensure we link easily to the site or repo from other pages, notably PyPI (third from top), as already in place for the BitBucket pages.

Start by reviewing the documentation build settings in conf.py, then inspect how the repository and documentation are linked from PyPI and the existing BitBucket pages. Done means the current Python 3 repository and documentation are easier to find in search results, with the chosen changes verified against those entry points.