This directory is the source of the profile shown on github.com/setucp.
GitHub renders an organisation's public profile from profile/README.md
in a public repository named exactly .github in that
organisation. To publish it, create setucp/.github (public), push
this directory's contents to its default branch, and the profile
appears on the organisation page.
The banner is loaded from the setu repository by raw URL
(docs/brand/github-banner.png on main), so it renders only once
that repository is public.