Demonstrate consumer cancelling in consume_500 example.

Author: jemc

README.md

@@ -50,7 +50,8 @@ require 'rabbitmq'
 
 consumer = RabbitMQ::Client.new.start.channel
 consumer.basic_qos(prefetch_count: 500)
-consumer.basic_consume("some_queue")
+res = consumer.basic_consume("some_queue")
+tag = res[:properties][:consumer_tag]
 
 count = 0
 consumer.on :basic_deliver do |message|
@@ -62,6 +63,7 @@ consumer.on :basic_deliver do |message|
 end
 
 consumer.run_loop!
+consumer.basic_cancel(tag)
 ```
 
 ## Contributing

example/consume_500.rb

@@ -3,7 +3,8 @@
 
 consumer = RabbitMQ::Client.new.start.channel
 consumer.basic_qos(prefetch_count: 500)
-consumer.basic_consume("some_queue")
+res = consumer.basic_consume("some_queue")
+tag = res[:properties][:consumer_tag]
 
 count = 0
 consumer.on :basic_deliver do |message|
@@ -15,3 +16,4 @@
 end
 
 consumer.run_loop!
+consumer.basic_cancel(tag)