feat(docs): Update documentation for version 6.1.0.

Change-Id: I74abd4b17316a1a45c455b68530000645688d8cf
diff --git a/examples/spring-boot/src/main/resources/logging.properties b/examples/spring-boot/src/main/resources/logging.properties
index 8bc0033..ba75dff 100644
--- a/examples/spring-boot/src/main/resources/logging.properties
+++ b/examples/spring-boot/src/main/resources/logging.properties
@@ -2,7 +2,7 @@
 #
 # SPDX-License-Identifier: GPL-3.0-or-later
 
-# java.util.logging properties
+# java.util.logging properties (not used)
 #handlers = eu.mulk.quarkus.googlecloud.jsonlogging.logmanager.DefaultConsoleHandler
 #.level = INFO