add introductory paragraph to H1 header

Author: xstof

articles/active-directory/fundamentals/scenario-azure-first-sap-identity-integration.md

@@ -17,6 +17,8 @@ ms.collection:
 
 # Scenario - Using Azure Active Directory to secure access to SAP platforms and applications
 
+This document provides advice on the technical design and configuration of SAP platforms and applications when using Azure Active Directory as the primary user authentication service.
+
 ## Terminology used in this guide
 
 | Abbreviation                                                                                                          | Description                                                                                                                                                                                                   |
@@ -31,8 +33,6 @@ ms.collection:
 
 ## Overview
 
-This document provides advice on the technical design and configuration of SAP platforms and applications when using Azure Active Directory as the primary user authentication service.
-
 There are many services and components in the SAP and Microsoft technology stack that play a role in user authentication and authorization scenarios. The main services are listed in the diagram below.
 
 ![SAP landscape overview](./media/scenario-aad-first-sap-integration/sap-landscape-overview.png)