Merge branch 'master' of https://github.com/iot-for-all/iotc-aad-app into master

README.md

@@ -1,9 +1,16 @@
-# IOTC-ADD-APP
-An interactive code walk-through on how to authenticate and authorize to use the Azure IoT Central REST APIs
+# An interactive code walk-through on how to authenticate and authorize to use the Azure IoT Central REST APIs
+This is a small codebase built from create-react-app and uses MSAL.js. The code demonstrates the call patterns required to Auth'N/Auth'Z against MS Graph, IoT Central, Azure Resource Management (ARM) and working examples of their respective APIs. This should provide you with enough base code to start your own application.
+
+The code demonstrates two call patterns.  One pattern is used for IoT Central data plane APIs and single sign-on.  The other is used for IoT Central control plane APIs.  
+
+Data plane APIs are REST APIs to interact with a specific IoT Central application.  Click [here](https://docs.microsoft.com/en-us/rest/api/iotcentral/) to see the list of available APIs.  Single sign-on enables deep-linking from your application into an IoT Central application.
+
+Control plane APIs are used to manage resources in you Azure subscription.  Use these APIs to create, delete or find and IoT Central application. 
+
 
 ## Install
 ```
-npm ci
+npm i
 ```
 
 ## Run