docs: add update-dot screenshots

README.md

@@ -40,6 +40,8 @@ Also: [Home with top-right Settings](docs/screenshots/home-16.png) ·
 [Now playing](docs/screenshots/home-now-playing.png) ·
 [1280×720](docs/screenshots/home-1280x720.png) ·
 [GPS speed](docs/screenshots/home-gps-speed.png) ·
+[Update dot](docs/screenshots/home-update-dot.png) ·
+[Update dot close-up](docs/screenshots/home-update-dot-closeup.png) ·
 [Mocked OBD · 1280×720](docs/screenshots/home-obd-mock-1280x720.png) ·
 [Mocked OBD · 1280×800](docs/screenshots/home-obd-mock-1280x800.png) ·
 [Night mode](docs/screenshots/home-night-mode.png) ·