Update preview section instructions in docs

Author: TorstenDittmann

apps/docs/docs.html

@@ -4,7 +4,8 @@
 		<h2>Preview</h2>
 		<p>
 			Try out the interactive preview below to see launch.css in action.
-			Toggle between themes and layouts to see how your content adapts.
+			Where are the code snippets? Just inspect the source code to see how
+			it's done.
 		</p>
 		<form>
 			<input