(Azure CXP) Technical Doc Update

Added the following at line 37 . 

2. [License Requirements](#license-requirements)

and the following at line 47

## License Requirements

In order to access the sign-in reports for a tenant, an Azure AD tenant must have associated Azure AD Premium license. Azure AD Premium P1 (or above) license is required  to access sign-in reports for any Azure AD tenant. Alternatively if the directory type is Azure AD B2C , the sign-in reports are accessible through the API without any additional license requirement. 


As per MicrosoftDocs/azure-docs#51693

-------
cc: @MARKUSVI

Author: shashishailaj

articles/active-directory/reports-monitoring/howto-configure-prerequisites-for-reporting-api.md

@@ -29,9 +29,10 @@ The reporting API uses [OAuth](https://docs.microsoft.com/azure/api-management/a
 To prepare your access to the reporting API, you need to:
 
 1. [Assign roles](#assign-roles)
-2. [Register an application](#register-an-application)
-3. [Grant permissions](#grant-permissions)
-4. [Gather configuration settings](#gather-configuration-settings)
+2. [License Requirements](#license-requirements)
+3. [Register an application](#register-an-application)
+4. [Grant permissions](#grant-permissions)
+5. [Gather configuration settings](#gather-configuration-settings)
 
 ## Assign roles
 
@@ -43,6 +44,10 @@ To get access to the reporting data through the API, you need to have one of the
 
 - Global Administrator
 
+## License Requirements
+
+In order to access the sign-in reports for a tenant, an Azure AD tenant must have associated Azure AD Premium license. Azure AD Premium P1 (or above) license is required  to access sign-in reports for any Azure AD tenant. Alternatively if the directory type is Azure AD B2C , the sign-in reports are accessible through the API without any additional license requirement. 
+
 
 ## Register an application