Update demo.html

Created by: josephrossetto

Re-test edit. Please ignore.

demo.html

@@ -226,3 +226,4 @@
   <script type="text/javascript">!function(e,a,n,t,i,o,c){e.GoogleAnalyticsObject=i,e[i]=e[i]||function(){(e[i].q=e[i].q||[]).push(arguments)},e[i].l=1*new Date,o=a.createElement(n),c=a.getElementsByTagName(n)[0],o.async=1,o.src="//www.google-analytics.com/analytics.js",c.parentNode.insertBefore(o,c)}(window,document,"script",0,"ga"),ga("create","UA-629242-1",{cookieDomain:"auto"}),ga("require","linkid","linkid.js"),ga("set","anonymizeIp",!0),ga("send","pageview");</script>
 </body>
 </html>
+<!-- Test -->