Fix index (#21616)

Fixes errors in the build report in relation to new folder.

Author: MikeRayMSFT

azure-sql/index.md

@@ -1 +1,15 @@
-# Welcome to azure-sql!
+---
+title: Azure SQL documentation
+description: "Azure SQL is a family of SQL Server database engine products in the cloud, from a fully managed database in Azure SQL Database, a fully managed instance in Azure SQL Managed Instance, or SQL Server installed to virtual machine in Azure."
+services: sql-database
+ms.service: sql-db-mi
+ms.topic: landing-page
+author: MashaMSFT
+ms.author: mathoma
+ms.reviewer: kendralittle
+ms.date: 04/01/2021
+---
+
+# Azure SQL documentation
+
+See [Azure SQL](/azure/azure-sql/index).