Update the azure powershell developer guide with autorest powershell …

…generator related materials

documentation/development-docs/azure-powershell-developer-guide.md

@@ -2,6 +2,8 @@
 
 The Azure PowerShell Developer Guide was created to help with the development and testing of Azure PowerShell cmdlets. This guide contains information on how to set up your environment, create a new project, implement cmdlets, record and run tests, and more.
 
+**Note: Except for the way described in this page, There is a new way to generate PowerShell modules through AutoRest PowerShell generator. And related links are attached in the end.**
+
 # Table of Contents
 
 - [Prerequisites](#prerequisites)
@@ -317,3 +319,7 @@ Whenever you make updates to a project, please make sure to update the correspon
 ## Publish to PowerShell Gallery
 
 To publish your module to the [official PowerShell gallery](http://www.powershellgallery.com/) or the test gallery site, contact the Azure PowerShell team
+
+# AutoRest PowerShell Generator
+- [autorest.powershell documentation](https://github.com/Azure/autorest.powershell/tree/master/docs)
+- [examples](https://github.com/Azure/azure-powershell/tree/generation/src)