Comment out release notes in master until they are populated

docs/reference/index.asciidoc

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