Update playlist.html

src/app/partials/playlist.html

@@ -38,7 +38,7 @@
 				<div class="editor-option">
 					<div class="span4">
 						<span><i class="icon-question-sign"></i>
-							dashboards available in the playlist are only the once marked as favorites (stored in local browser storage).
+							dashboards available in the playlist are only the ones marked as favorites (stored in local browser storage).
 							to mark a dashboard as favorite, use save icon in the menu and in the dropdown select mark as favorite
 							<br/><br/>
 						</span>