upd readme

Author: makasim

README.md

@@ -20,7 +20,7 @@ Flowstate is a great fit when you need:
 * [Durable execute](examples/durable_execute.go)
 * [Delayed execute](examples/delayed_execute.go)
 * [Execute with delay](examples/execute_with_timeout.go)
-* Real-time Two-Player Game – GoGame: [Live Demo](https://gogame.makasim.com/) | [Source Code](https://github.com/makasim/gogame).
+* Real-time Two-Player Game – GoGame: [Live Demo](https://gogame.makasim.com/) | [Video](https://x.com/maksim_ka2/status/1825587227163795478) | [Source Code](https://github.com/makasim/gogame).
 * [Testcases](testcases)
 
 ## Install