Mention Flux in “communicate between components”

tips/14-communicate-between-components.md

@@ -38,4 +38,4 @@ React.render(
 
 Notice the use of `bind(this, arg1, arg2, ...)`: we're simply passing more arguments to `handleClick`. This is not a new React concept; it's just JavaScript.
 
-For communication between two components that don't have a parent-child relationship, you can set up your own global event system. Subscribe to events in `componentDidMount()`, unsubscribe in `componentWillUnmount()`, and call `setState()` when you receive an event.
+For communication between two components that don't have a parent-child relationship, you can set up your own global event system. Subscribe to events in `componentDidMount()`, unsubscribe in `componentWillUnmount()`, and call `setState()` when you receive an event. [Flux](https://facebook.github.io/flux/) pattern is one of the possible ways to arrange this.