Fix example in Attribution control docs

Author: bhousel

js/ui/control/attribution.js

@@ -13,7 +13,7 @@ module.exports = Attribution;
  * @param {string} [options.position='bottom-right'] A string indicating the control's position on the map. Options are `top-right`, `top-left`, `bottom-right`, `bottom-left`
  * @example
  * var map = new mapboxgl.Map({attributionControl: false})
- *     .addControl(new mapboxgl.Navigation({position: 'top-left'}));
+ *     .addControl(new mapboxgl.Attribution({position: 'top-left'}));
  */
 function Attribution(options) {
     util.setOptions(this, options);