change author on vnet landing page

Author: asudbring

articles/virtual-network/index.yml

@@ -10,8 +10,8 @@ metadata:
   ms.service: virtual-network
   ms.topic: landing-page
   ms.collection: collection
-  author: mbender-ms
-  ms.author: mbender
+  author: asudbring
+  ms.author: allensu
   ms.date: 06/29/2022
 
 # linkListType: architecture | concept | deploy | download | get-started | how-to-guide | learn | overview | quickstart | reference | tutorial | whats-new