Update publisher-verification-overview.md

Adding in clarification that only AAD MFA is sufficient for this requirement - non-AAD MFA will not work

Author: xurobertMSFT

articles/active-directory/develop/publisher-verification-overview.md

@@ -66,7 +66,7 @@ App developers must meet a few requirements to complete the publisher verificati
 
   - In Partner Center, this user must have one of the following [roles](/partner-center/permissions-overview): MPN Partner Admin, Account Admin, or Global Administrator (a shared role that's mastered in Azure AD).
 
-- The user who initiates verification must sign in by using [multifactor authentication](../authentication/howto-mfa-getstarted.md).
+- The user who initiates verification must sign in by using [AAD multifactor authentication](../authentication/howto-mfa-getstarted.md).
 
 - The publisher must consent to the [Microsoft identity platform for developers Terms of Use](/legal/microsoft-identity-platform/terms-of-use).