Docs: changed recommended transition slideup with slidedown (page-dia…

…logs.html)

docs/pages/page-dialogs.html

@@ -38,7 +38,7 @@ <h2>Creating dialogs</h2>
 
 
 			<h2>Transitions</h2>
-			<p>By default, the dialog will open with a 'pop' transition.  Like all pages, you can specify any <a href="page-transitions.html">page transition</a> you want on the dialog by adding the <code>data-transition</code> attribute to the link. To make it feel more dialog-like, we recommend specifying a transition of "pop", "slideup" or "flip".</p>
+			<p>By default, the dialog will open with a 'pop' transition.  Like all pages, you can specify any <a href="page-transitions.html">page transition</a> you want on the dialog by adding the <code>data-transition</code> attribute to the link. To make it feel more dialog-like, we recommend specifying a transition of "pop", "slidedown" or "flip".</p>
 
 <code>
 &lt;a href=&quot;foo.html&quot; data-rel=&quot;dialog&quot; data-transition=&quot;pop&quot;&gt;Open dialog&lt;/a&gt;