Underline ?

Author: Leon Michalski

v2/guide/constructs.adoc

@@ -661,7 +661,7 @@ Some of our language-specific API references currently have errors in the paths
 ====
 
 [#constructs-l1-l2-references]
-==== Passing construct references to L1 properties
+=== Passing construct references to L1 properties
 
 L1 constructs support passing construct objects directly to properties that expect resource references, such as ARNs or names. The CDK automatically resolves the appropriate attribute (ARN, name, or other identifier) based on the property type.