diff --git a/samples/appcache-tiles.html b/samples/appcache-tiles.html
index e117435..6badac5 100644
--- a/samples/appcache-tiles.html
+++ b/samples/appcache-tiles.html
@@ -1,6 +1,24 @@
 <!DOCTYPE html>
 <html manifest="../manifest.appcache">
 <!--<html>-->
+<!--
+
+This sample demonstrates using an application manifest to store tiles locally.
+
+The use cases for using this sample are to ensure you can reload and restart you application
+one it is offline.
+
+Use the included Grunt task to help generate the manifest file. There is manual
+work involved in determining which files need to go into the manifest. The included manifest
+file should work with this sample to give you an idea of what goes into the manifest.
+
+A few things to know about manifest files:
+- You cannot load an online url that has a redirect.
+- If there is an error encountered, the manifest file will stop loading
+- The /utils/appCacheManager.js library will auto detect if the manifest changed and
+ask if you want to reload the application.
+
+-->
 <head>
     <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
     <meta name="viewport" content="initial-scale=1, maximum-scale=1,user-scalable=no"/>
