Changing ms.topic to a valid value

Author: VanMSFT

articles/sql-data-warehouse/index.md

@@ -6,7 +6,7 @@ author: hirokib
 manager: craigg-msft
 layout: LandingPage
 ms.service: sql-data-warehouse
-ms.topic: landing-page
+ms.topic: overview
 ms.component: design
 ms.date: 04/11/2018
 ms.author: elbutter

articles/sql-database/index.yml

@@ -11,7 +11,7 @@ metadata:
   ms.service: sql-database
   ms.tgt_pltfrm: na
   ms.devlang:
-  ms.topic: landing-page
+  ms.topic: overview
   ms.date: 07/07/2018
   ms.author: carlrab
 abstract:

articles/sql-server-stretch-database/index.md

@@ -9,7 +9,7 @@ ms.assetid:
 ms.service: sql-server-stretch-database
 ms.tgt_pltfrm: na
 ms.devlang: na
-ms.topic: landing-page
+ms.topic: overview
 ms.date: 01/23/2017
 ms.author: carolz
 ---