Update author name in Azure Marketplace article

Author: KennyDay

articles/cost-management-billing/manage/ea-azure-marketplace.md

@@ -1,7 +1,7 @@
 ---
 title: Azure Marketplace
 description: Describes how EA customers can use Azure Marketplace.
-author: shapathak
+author: SPathak16
 ms.reviewer: v-salin
 ms.service: cost-management-billing
 ms.subservice: enterprise