nixos/veilid: fix description link

Changed files
+1 -1
nixos
modules
services
networking
+1 -1
nixos/modules/services/networking/veilid.nix
···
settings = mkOption {
description = ''
Build veilid-server.conf with nix expression.
-
Check [Configuration Keys](https://veilid.gitlab.io/developer-book/admin/config.html#configuration-keys).
+
Check <link xlink:href="https://veilid.gitlab.io/developer-book/admin/config.html#configuration-keys">Configuration Keys</link>.
'';
type = types.submodule {
freeformType = settingsFormat.type;