Fix indent

Author: rolyon

articles/role-based-access-control/index.yml

@@ -13,7 +13,7 @@ metadata:
   ms.collection: na
   author: rolyon
   manager: amycolannino
-ms.author: rolyon
+  ms.author: rolyon
   ms.date: 02/15/2021
 
 # linkListType: architecture | concept | deploy | download | get-started | how-to-guide | learn | overview | quickstart | reference | tutorial | video | whats-new