project: add debounce example in README

Author: twittemb

README.md

@@ -382,6 +382,12 @@ Allows to create a SwiftUI binding on a property of the current state, sending a
 
 ```swift
 self.viewStateMachine.binding(keypath: \.persons, send: .closeButtonWasPressed)
+```
+
+Allows to create a SwiftUI binding on a property of the current state, sending an Event when the binding changes, debounced with the specified dueTime.
+  
+```swift
+self.viewStateMachine.binding(keypath: \.persons, send: .closeButtonWasPressed).debounce(for: .seconds(1))
 ```
   </details>