Removed the redundant Overview heading 2

Author: KumarVivek

powerapps-docs/maker/portals/overview.md

@@ -13,8 +13,6 @@ ms.reviewer:
 
 # What is Power Apps portals?
 
-## Overview
-
 Power Apps makers can now create a powerful new type of experience: external-facing websites that allow users outside their organizations to sign in with a wide variety of identities, create and view data in Common Data Service, or even browse content anonymously. The full capabilities of Dynamics 365 Portals, previously offered only as an add-on to model-driven apps in Dynamics 365, are now available completely standalone inside of Power Apps.  
 
 These capabilities feature a revamped end-to-end experience for makers to quickly create a website and customize it with pages, layout, and content. Makers can reuse page designs through templates, add forms and views to display key data from Common Data Service, and publish to users.
@@ -36,4 +34,4 @@ These capabilities feature a revamped end-to-end experience for makers to quickl
 #### Advanced portal customization
 
 - [Portal management app](configure/configure-portal.md)
-- [Portal site settings](configure/configure-site-settings.md)
+- [Portal site settings](configure/configure-site-settings.md)