README: Add images

README.md

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 # OmnispeakT4
-A port of Commander Keen "Commander Keen in Goodbye Galaxy!" to the Teeny4.1 microcontroller. :gun:
+A port of Commander Keen "Commander Keen in Goodbye Galaxy!" to the Teeny4.1 microcontroller. :gun: [See this Video](https://i.imgur.com/poqZm4b.mp4) of it in action!
 
 * Note: Requires game files from the original game. Ref https://github.com/sulix/omnispeak. The shareware version of Keen4 is linked there too.
 * Save game support support to an SD Card.
 * USB input driver (hardcoded for Xbox360 type controllers).
 * Genuine OPL ADLIB Audio supported!. Requires [YM3812 OPL2 FM-synthesizer](https://www.tindie.com/products/cheerful/opl2-audio-board/).
 
+<img src="https://i.imgur.com/Bx894F9.jpg" alt="omnispeakT4" width="100%"/>  
+
 ## Needed Parts
 | Qty | Part Description | Link |
 |--|--|--|