Clarify effect of keystrokes for big steps

Author: kbwood

demos/functional/templates/ui.datepicker.html

@@ -41,8 +41,8 @@
 			{
 				title: 'Keystrokes',
 				desc: 'You can use the keyboard to enter dates and to control the datepicker:' +
-					'<ul style="list-style: disc; padding-left: 2em;"><li>page up/down - previous/next month</li>' +
-					'<li>ctrl+page up/down - previous/next year</li>' +
+					'<ul style="list-style: disc; padding-left: 2em;"><li>page up/down - previous/next month (based on <i>stepMonths</i>)</li>' +
+					'<li>ctrl+page up/down - previous/next year (based on <i>stepBigMonths</i>)</li>' +
 					'<li>ctrl+home - current month or open when closed</li>' +
 					'<li>ctrl+left/right - previous/next day</li>' +
 					'<li>ctrl+up/down - previous/next week</li>' +