docs(nix): refine style rule wording

src/skills/style/nix/rules/dotfiles.md

@@ -2,13 +2,13 @@
 
 ### Rule
 
-When adding a graphical application, register its window-class match and rendered icon in `registry.window-icon`.
+Each graphical application has a `registry.window-icon` entry with a window-class match and rendered icon.
 
 ### Rationale
 
 Hyprland uses this registry to render workspace icons for open application windows.
 
-### Examples
+### Find window classes
 
 Run this command to list window classes from the running compositor:
 
@@ -20,13 +20,13 @@ hyprctl clients -j | jq -r '.[].class' | sort -u
 
 ### Rule
 
-Make each guest module a wrapper around its service module.
+Each guest module wraps its service module.
-Enable the service module through `guests.<name>.interior`.
+Guest modules enable service modules through `guests.<name>.interior`.
-Keep service configuration in `modules.services.<name>`.
+Service modules contain service configuration.
-Use the guest module to pass paths and secret files to the service module.
+Guest modules pass paths and secret files to service modules.
-Use the guest module to configure bind mounts, resource limits, and registry entries.
+Guest modules configure bind mounts, resource limits, and registry entries.
-Keep guest modules independent of hosts.
+Guest modules remain independent of hosts.
-Put host paths, served volumes, guest addresses, and routes in host configuration.
+Host configuration provides paths, served volumes, guest addresses, and routes.
 
 ### Rationale