doc/config.md: Mention /etc/finit.d/available/ and initctl enable
@@ -31,6 +31,11 @@ a restart of any service you can simply touch its corresponding `.conf`
file in `/etc/finit.d` and call `initctl reload`. Finit handle any
and all conditions and dependencies between services automatically.
+It is also possible to drop `.conf` files in `/etc/finit.d/available/`
+and use `initctl enable` to enable a service `.conf` file. This may be
+useful in particular to Linux distributions that may want to install all
+files for a package and let the user decide when to enable a service.
+
On `initctl reload` the following is checked for all services:
- If a service's `.conf` file has been removed, or its conditions are no
