DocBlocks added for the new options

Author: vovayatsyuk

lib/web/mage/sticky.js

@@ -12,8 +12,24 @@ define([
     $.widget('mage.sticky', {
         options: {
             container: '',
+
+            /**
+             * Spacing in pixels above the stuck element
+             * @type {Number|Function} Number or Function that will return a Number
+             */
             spacingTop: 0,
+
+            /**
+             * Allows postponing sticking, until element will go out of the
+             * screen for the number of pixels.
+             * @type {Number|Function} Number or Function that will return a Number
+             */
             stickAfter: 0,
+
+            /**
+             * CSS class for active sticky state
+             * @type {String}
+             */
             stickyClass: '_sticky'
         },