Resizable demo: Fix description text, replacing the copy-pasta

Author: jzaefferer

demos/resizable/textarea.html

@@ -28,7 +28,7 @@
 <textarea id="resizable" rows="5" cols="20"></textarea>
 
 <div class="demo-description">
-<p>Display only an outline of the element while resizing by setting the <code>helper</code> option to a CSS class.</p>
+<p>Resizable can be applied to a textarea. This allows the user to make the textarea bigger if ends up typing longer prose.</p>
 </div>
 </body>
 </html>