Update release notes for 4.0
diff --git a/site/src/site/releasenotes/groovy-4.0.adoc b/site/src/site/releasenotes/groovy-4.0.adoc
index 9330e5b..dbaaf11 100644
--- a/site/src/site/releasenotes/groovy-4.0.adoc
+++ b/site/src/site/releasenotes/groovy-4.0.adoc
@@ -415,7 +415,7 @@
 
 [width="80%",align="center"]
 |===
-a| WARNING:
+a| NOTE: _WARNING:_
 The implementation of records is not final, hence the incubating status.
 We are still weighing up numerous options.
 We can make our record-like classes much more flexible than the Java variant,