rabbitmq.conf.example: updates for #14976 #14988

(cherry picked from commit 96a8925d4f11dc9a0507d0a01fe925549f577d5c)

Author: michaelklishin

deps/rabbit/docs/rabbitmq.conf.example

@@ -370,6 +370,7 @@
 ##
 # default_policies.operator.limits.vhost_pattern = ^prod-.*
 # default_policies.operator.limits.queue_pattern = .*
+# default_policies.operator.limits.apply_to = queues
 # default_policies.operator.limits.max_length = 10000
 # default_policies.operator.limits.message_ttl = 86400000