Explain what the [Ruby] example does

deps/rabbitmq_consistent_hash_exchange/examples/ruby/README.md

@@ -15,6 +15,13 @@ were not deleted.
 bundle install
 ```
 
+## Workload Details
+
+This example uses four queues: `q1` through `q4`. The first two of them are bound to a consistent hashing
+exchange with a weight of `1`, while the last two of them use a weight of `2`. This means
+that `q3` and `q4` will get roughly twice as many published messages routed to them
+compared to either `q1` or `q2`.
+
 ## Running the Example
 
 ``` sh
@@ -27,3 +34,17 @@ bundle exec ruby ./example2.rb
 # hashing on a message property
 bundle exec ruby ./example3.rb
 ```
+
+## Inspecting Queue States
+
+To list bindings to the exchange and their weights, use
+
+``` shell
+rabbitmqctl list_bindings | grep chx
+```
+
+To list queues and the number of ready messages in them:
+
+``` shell
+rabbitmqctl list_queues name messages_ready
+```