docs: the OS DOES paint -- skip run boots to a running X11 server (root weave confirmed in a frame dump); correct the claim I wrote

harness/mame/README.md

@@ -72,9 +72,15 @@ merely reported, so the OS is unreachable while it fails.
 
 ### What is not modelled
 
-**LANCE Ethernet**, and **DUART2** (`0x0620000`, keyboard/mouse — opt in with
-`VT1200_DUART2=1`). The OS is therefore not usable yet: it is reached, but it
-does not paint.
+**It gets further than "not modelled" suggests.** With `VT1200_SKIP_LEVEL1=1`
+(below), the OS boots to a **running X11 server**: the root-window weave renders,
+and the cursor is handed over to the terminal's own mouse cursor. Confirmed in the
+GUI *and* from a frame dump — `skip_frame3000.png`, taken from a headless skip run
+at frame 3000. The real terminal shows the same weave during boot.
+
+Not modelled, and therefore still untested: DUART2 (keyboard/mouse input) and
+LANCE Ethernet. They do not block the X11 bring-up — the server draws its root
+window without a client — but input almost certainly needs DUART2.
 
 ### Getting past level 1