Polish "Add auto-configuration for RabbitMQ metrics"

Closes gh-10887

spring-boot-project/spring-boot-docs/src/main/asciidoc/appendix-application-properties.adoc

@@ -1353,6 +1353,8 @@ content into your application. Rather, pick only the properties that you need.
 	management.metrics.export.statsd.queue-size=2147483647 # Maximum size of the queue of items waiting to be sent to the StatsD server.
 	management.metrics.jdbc.datasource-metric-name=data.source # Name of the metric for data source usage.
 	management.metrics.jdbc.instrument=true # Instrument all available data sources.
+	management.metrics.rabbitmq.instrument=true # Instrument all available connection factories.
+	management.metrics.rabbitmq.metric-name=rabbitmq # Name of the metric for RabbitMQ usage.
 	management.metrics.use-global-registry=true # Whether auto-configured MeterRegistry implementations should be bound to the global static registry on Metrics.
 	management.metrics.web.client.record-request-percentiles=false # Whether instrumented requests record percentiles histogram buckets by default.
 	management.metrics.web.client.requests-metric-name=http.client.requests # Name of the metric for sent requests.

spring-boot-project/spring-boot-docs/src/main/asciidoc/production-ready-features.adoc

@@ -1068,6 +1068,14 @@ Metrics are also tagged by the name of the `DataSource` computed based on the be
 
 
 
+[[production-ready-metrics-rabbitmq]]
+=== RabbitMQ metrics
+Auto-configuration will enable the instrumentation of all available RabbitMQ connection
+factories with a metric named `rabbitmq`. The prefix can be customized by using the
+`management.metrics.rabbitmq.metric-name` property.
+
+
+
 [[production-ready-metrics-integration]]
 === Spring Integration Metrics
 Auto-configuration enables binding of a number of Spring Integration-related metrics: