Update whats-new.md

updated description

Author: Gerardo Andrés Riaño Briceño

articles/key-vault/general/whats-new.md

@@ -21,7 +21,7 @@ Here's what's new with Azure Key Vault. New features and improvements are also a
 
 ## February 2023
 
-Built-in policy to drive the migration from access policies to Azure role-based access control (RBAC) is now in preview. Using the Azure Policy service, you can govern the migration to RBAC permission model across your vaults. You can create a custom policy definition to audit existing key vaults and enforce all new key vaults to use the Azure RBAC permission model. See [RBAC migration governance](../general/rbac-migration.md#migration-governance) to learn how to enforce the new built-in policy.
+Built-in policy to govern the migration to Azure role-based access control (RBAC) is now in preview. With the built-in policy you can audit existing key vaults and enforce all new key vaults to use the Azure RBAC permission model. See [RBAC migration governance](../general/rbac-migration.md#migration-governance) to learn how to enforce the new built-in policy.
 
 ## April 2022