readme fix

README.md

@@ -118,12 +118,7 @@ Currently the library offers the following API's
  - `toggleMenu`: Open or close the menu depending on its current state.
  - `isMenuOpened`: Returns whether the menu is opened or closed.
  - `setAnimationTime`: Controls the animation time to transition the menu from close to open state and vice versa. The time is represented in milli-seconds
- - `setStateChangeListener`: Allows you to listen to the state changes of the Menu.
-
-    public interface StateChangeListener {
-        void onMenuOpened();
-        void onMenuClosed();
-    }
+ - `setStateChangeListener`: Allows you to listen to the state changes of the Menu, i.e. `onMenuOpened` and `onMenuClosed` events
 
 License
 -------