docs: add mvi architecture diagram

Author: iluwatar

Diff for: model-view-intent/README.md

@@ -37,6 +37,11 @@ In plain words
 
 > The Model-View-Intent (MVI) pattern is a reactive architectural approach where user actions (Intent) modify the application state (Model), and the updated state is then reflected back in the user interface (View) in a unidirectional and cyclical data flow.
 
+Architecture diagram
+
+![Model-View-Intent Architecture Diagram](./etc/mvi-architecture-diagram.png)
+
+
 ## Programmatic Example of Model-View-Intent Pattern in Java
 
 The Model-View-Intent (MVI) pattern for Java is a modern approach to structuring your application's logic, ensuring a smooth, unidirectional flow of data and events. It's a variation of the Model-View-Presenter (MVP) and Model-View-ViewModel (MVVM) patterns, but with a more streamlined flow of data and events.