Update documentation to include note about RabbitMQ health support

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

@@ -165,10 +165,10 @@ To provide custom health information you can register a Spring bean that impleme
 Spring Boot provides a
 {sc-spring-boot-actuator}/health/SimpleDatabaseHealthIndicator.{sc-ext}[`SimpleDatabaseHealthIndicator`]
 implementation that attempts a simple database test as well as implementations for
-Redis and MongoDB.
+Redis, MongoDB and RabbitMQ.
 
 Spring Boot adds the `HealthIndicator` instances automatically if beans of type `DataSource`,
-`MongoTemplate` or `RedisConnectionFactory` are present in the `ApplicationContext`.
+`MongoTemplate`, `RedisConnectionFactory`, `RabbitTemplate` are present in the `ApplicationContext`.