docs: markdown documentation section (sidebar nav, per-page toc, search, hljs)

content/docs/services.md

@@ -0,0 +1,30 @@
+# Services
+
+echo services is a suite of pseudo-clients that runs as its own program and links to the network
+as a services server. State is **event-sourced** — every change is an appended event, replayed to
+rebuild the database.
+
+## The services
+
+| Service | Purpose |
+| --- | --- |
+| **NickServ** | account registration, grouped nicks, certificates, public keys, vhosts, profiles |
+| **ChanServ** | channel founders and access, auto-op, akick, topic and mode locks |
+| **OperServ** | network administration, akills, session control |
+| **MemoServ** | offline messages between accounts |
+
+## Running
+
+echo services is configured from its own file and connects to the ircd over the server port:
+
+```sh
+echo config.toml
+```
+
+On the ircd side, the services server must be U-lined and named as the SASL server — see
+[Server links](/docs/linking#services).
+
+## Accounts & SASL
+
+Registration and login are covered in [Accounts & SASL](/docs/accounts). SASL is relayed from the
+daemon to services mechanism-agnostically, so new mechanisms work without daemon changes.