Update README.md

Author: Wes0617

README.md

@@ -53,5 +53,5 @@ why shouldn't it be allowed for us zooming a banner only?</p>
 or a banner that is totally visible but 20% smaller?</p>
 
 <h1>The Demo</h1>
-<p>Browse the repository, download all the files, edit index.htm using your adsense parameters,
-upload the three files on your server and run it in your browser.</p>
+<p>Browse the repository, download all the files, edit <code>demo.htm</code> using your adsense parameters,
+upload the three files on your server and launch the page in your browser.</p>