README: photo of the widget

README.md

@@ -6,6 +6,8 @@ live MJPEG video where the camera streams it — and moves on to the next one
 every 20 seconds. The knob steps through cameras, the LED ring drains as the
 countdown runs. Everything happens on the ESP32-S3; no bridge or PC needed.
 
+![The widget on a desk, paused on a favourite Tokyo camera](docs/widget.jpg)
+
 insecam lists cameras that are reachable on the public internet without any
 password. The widget only ever does what a browser on that site does: fetch a
 listing page, then fetch the camera's own snapshot/stream URL.