Change the commented out line to a comment block

docs/reference/index.asciidoc

@@ -44,7 +44,9 @@ include::testing.asciidoc[]
 
 include::glossary.asciidoc[]
 
-// include::release-notes.asciidoc[]
+//////////////////////////////////////////
+  include::release-notes.asciidoc[]
+//////////////////////////////////////////
 
 include::redirects.asciidoc[]