Body text was describing a setup that no longer exists (GitLab
pipelines, a private registry) - replaced with what's actually running
(Gitea, Caddy/Authentik, Ansible/Kestra/n8n) and pointed the
"what you'll find" section at the new per-repo folder structure.
Fixed the LinkedIn link (was missing its scheme), added
Instagram/TikTok/YouTube, dropped the Bookstack wiki link.