README documents what FlexHub is (rebrand of git.s8n.ru), the
git.s8n.ru/flexhub.s8n.ru hostname split, and the layout of the
Forgejo custom/ tree. docs/DEPLOY.md covers updating the homepage
template, theme CSS, app.ini, image assets, and the Traefik file
provider router on nullstone.
Repo previously contained only a one-line README + the home.tmpl
override; this fills in the operator-facing docs so flexhub becomes
the canonical project page (referenced as a mirror by ARRFLIX).
