Docs (dialogs): Added line about the framework adding a close button if a dialog has a header.

Author: jaspermdegroot

docs/pages/page-dialogs.html

@@ -25,7 +25,7 @@ <h1>Dialogs</h1>
 	<div data-role="content" class="ui-body">
 			<div class="content-primary">
 			<h2>Creating dialogs</h2>
-			<p>Any page can be presented as a modal dialog by adding the <code>data-rel="dialog"</code> attribute to the page anchor link. When the "dialog" attribute is applied, the framework adds styles to add rounded corners, margins around the page and a dark background to make the "dialog" appear to be suspended above the page.</p>
+			<p>Any page can be presented as a modal dialog by adding the <code>data-rel="dialog"</code> attribute to the page anchor link. When the "dialog" attribute is applied, the framework adds styles to add rounded corners, margins around the page and a dark background to make the "dialog" appear to be suspended above the page. If the dialog has a header the framework will also add a close button at the left side of the header.</p>
 
 			<p>
 			<code>