make the heading level 4

Author: renetapopova

modules/ROOT/pages/tutorial/tutorial-sso-configuration.adoc

@@ -247,7 +247,7 @@ The audience parameter for access tokens is typically set with `api://` at the f
 
 This example shows how to configure Entra ID for authentication and authorization using ID tokens.
 
-=== Register the application
+==== Register the application
 
 . Log in to the https://portal.azure.com/#home[Azure portal].
 . Navigate to *Microsoft Entra ID > Overview*.