message: Update pointerup docs to suggest mouse events when appropriate
diff: @@ -349,6 +349,9 @@ export default class InteractionManager extends EventEmitter
  /**
  * Fired when a pointer device button is released over the display object.
  + * Not always fired when some buttons are held down while others are released. In those cases,
  + * use [mousedown]{@link PIXI.interaction.InteractionManager#event:mousedown} and
  + * [mouseup]{@link PIXI.interaction.InteractionManager#event:mouseup} instead.
  *
  * @event PIXI.interaction.InteractionManager#pointerup
  * @param {PIXI.interaction.InteractionEvent} event - Interaction event
  