One nginx owns host ports 80/443 for every project (Gitea, Musify) and
proxies by container name over infra-net and gitea_gitea; a certbot
service renews the Let's Encrypt certificates.
The README previously described this stack as shared by "every project
under Documentos/", which is just this machine's local checkout location,
not something the repo itself should assume. Every project lives in its
own git repository; the path to this repo's checkout is a per-project
setting (ZITADEL_ADMIN_PAT_DIR), not a fixed convention.
Also drops leftover em dashes across the docs and compose comments for
plainer prose.