docs: the desktop shell and what the merge changed

Five components become three, and the Theme symlink count with them. Two
new notes: a pragma Singleton in a subdirectory resolves through a plain
directory import with no qmldir, and Virsh.sampling gates only the stats
poll, not the lifecycle stream that keeps the tile correct while the page
is closed.

1 files changed, 11 insertions, 11 deletions

diff --git a/README.md b/README.md
index a74de8a..7a6cbee 100644
--- a/README.md
+++ b/README.md
@@ -1,8 +1,9 @@
 # quickshell
 
 Quickshell components for a Hyprland desktop, each one self-contained in its
-own directory. They are separate shells, not modules of a single bar: any of
-them can run alone, and running one does not require the others.
+own directory. They are three separate shells, not modules of a single bar:
+any of them can run alone, and running one does not require the others. One of
+them, `desktop/`, is itself a host for modules, which its own README covers.
 
 Visually they follow [unified-desktop-theme][udt]: Catppuccin Macchiato as the
 fixed base, Noto Sans for UI text, and an accent that tracks the wallpaper.
@@ -13,29 +14,28 @@ repos stay independent, this one has no build-time dependency on that one.
 
 ## Implementations
 
-    volume-osd/       on-screen display for output and input volume
-    vm-manager/       libvirt VM drawer: state, live stats, snapshots
+    desktop/          the drawer: sound, mail, VMs, appearance
     appearance/       wallpaper picker and colour scheme switcher
-    mail-overview/    unread mail per account, as a waybar count and a drawer
     window-switcher/  open windows as live previews in a grid, on ALT+TAB
 
 Each directory has its own README covering what it does and how to run it.
 
 ## Running one
 
-    qs -p ./volume-osd
+    qs -p ./desktop
 
-To start it with the session, from Hyprland:
+To start one with the session, from Hyprland:
 
-    exec-once = qs -p ~/Programming/GIT/quickshell/volume-osd
+    exec-once = qs -p ~/Programming/GIT/quickshell/desktop
 
 Quickshell uses private Qt APIs, so it must be rebuilt after every Qt update.
 `qs --version` should report the same Qt as the installed one.
 
 Some components ask the compositor for an effect they cannot draw themselves,
-such as the blur behind `volume-osd`. Those rules live in the Hyprland config
-rather than here, and each component's README gives the block to add. They are
-optional: without the rule the component renders without that effect.
+such as the blur behind the sound module's OSD. Those rules live in the
+Hyprland config rather than here, and each component's README gives the block
+to add. They are optional: without the rule the component renders without that
+effect.
 
 ## License