Added a new update method for adjusting the dialog box's position w…

…hen content is changed dynamically, at run-time

README.md

@@ -428,6 +428,19 @@ var dialog = new $.Zebra_Dialog('This is some information');
 dialog.close();
 ```
 
+### `update()`
+
+Use this method to adjust the dialog box's position after content is changed dynamically, at run-time.
+
+```javascript
+var dialog = new $.Zebra_Dialog('This is some information');
+
+// change the content in the dialog box
+$('.ZebraDialog_Body').html('New content');
+
+dialog.update();
+```
+
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