adds disclaimer about ngResource example

Author: zafarali

README.md

@@ -516,7 +516,9 @@ We can now call `Notes.update({id:id}, data);` after injecting the `Notes` facto
 This makes our code easier to deal with by only dealing with objects and not with repeated instances of urls. We must note that `$resource` depends on `$http` which will be discussed shortly.
 
 ##### Notes Regarding Cross Domain Requests
-You may or may not know that Javascript cannot make AJAX calls to a domain thats not their own. i.e. your website (assuming you don't work for twitter) cannot ping twitter to get tweets. However, there is a method around this known as padding or *JSONP*. (I found out after the video that Twitter no longer offers this API without authentication, Instead I decided to use the [Meetup API for cities](http://www.meetup.com/meetup_api/docs/2/cities/)) . In the example [08-1-ngResource.html](https://github.com/zafarali/learning-angular/blob/master/08-1-ngResource.html) I override the usual GET method of the resource object with the JSONP method which allows me to access the Meetup API and retrieve nearest cities. Note that not all websites provide a JSONP enabled API. The page is made following the tutorial from [egghead.io](https://www.youtube.com/watch?v=IRelx4-ISbs). [Meetup Cities API](http://www.meetup.com/meetup_api/docs/2/cities/). **Read the comments in 08-1-ngResource.html for in depth explanation of what is happening**  
+You may or may not know that Javascript cannot make AJAX calls to a domain thats not their own. i.e. your website (assuming you don't work for twitter) cannot ping twitter to get tweets. However, there is a method around this known as padding or *JSONP*. (I found out after the video that Twitter no longer offers this API without authentication, Instead I decided to use the [Meetup API for cities](http://www.meetup.com/meetup_api/docs/2/cities/)) . In the example [08-1-ngResource.html](https://github.com/zafarali/learning-angular/blob/master/08-1-ngResource.html) I override the usual GET method of the resource object with the JSONP method which allows me to access the Meetup API and retrieve nearest cities. Note that not all websites provide a JSONP enabled API. The page is made following the tutorial from [egghead.io](https://www.youtube.com/watch?v=IRelx4-ISbs). [Meetup Cities API](http://www.meetup.com/meetup_api/docs/2/cities/). **Read the comments in 08-1-ngResource.html for in depth explanation of what is happening**   
+
+Another conversation I found online regarding the `ngResource` module is that the above example doesn't demonstrate its complete power. Infact `$resource` should be used when we have objects to `.get()`, manipulate and then `.$save()` back onto the server.   
 
 ### Interesting things to know
 Here are a few things I felt like covering to give us a nice break from the very serious factory, provider, module, routing stuff we have been getting into