docs: use absolute URLs for internal doc links so they work off-site (e.g. the repo view), not just on orbit.tchatou.fr

docs/overview.md

@@ -14,19 +14,19 @@ network** and **rebranded** from a single `config.json` — without recompiling.
 
 - **Full IRCv3.** Orbit negotiates 24 capabilities — SASL, message-tags, reactions, typing
   indicators, read-markers, multi-line messages, server-side history, account registration, and
-  Web Push. See [IRCv3 capabilities](/docs/ircv3/).
+  Web Push. See [IRCv3 capabilities](https://orbit.tchatou.fr/docs/ircv3/).
 - **Pluggable at runtime.** A static `config.json` is fetched on startup and sets the server,
   channels, branding, themes and feature flags. One build can serve any community. See
-  [config.json reference](/docs/config/).
+  [config.json reference](https://orbit.tchatou.fr/docs/config/).
 - **Installable PWA.** Mobile-first layout, offline app shell, and notifications when the tab is
   closed.
 - **Self-hostable.** A static build behind any web server. The project even runs its own git
-  server with [push-to-deploy](/docs/push-to-deploy/).
+  server with [push-to-deploy](https://orbit.tchatou.fr/docs/push-to-deploy/).
 - **Free software.** AGPL-3.0 — use it, modify it, self-host it.
 
 ## Tech
 
 React 19 · TypeScript · Vite · zustand. Tested with Vitest, linted, and built in CI. The codebase
-is a clean modular tree — see [Architecture](/docs/architecture/).
+is a clean modular tree — see [Architecture](https://orbit.tchatou.fr/docs/architecture/).
 
-> New here? Jump to the [Quick start](/docs/quick-start/) to run your own in a minute.
+> New here? Jump to the [Quick start](https://orbit.tchatou.fr/docs/quick-start/) to run your own in a minute.