Merge pull request #404 from mbrookes/patch-2

Update Readme.md parallel requests example.

README.md

@@ -165,25 +165,25 @@ request.run
 
 ### Making Parallel Requests
 
-Generally, you should be running requests through hydra. Here is how that looks
+Generally, you should be running requests through hydra. Here is how that looks:
 
 ```ruby
 hydra = Typhoeus::Hydra.hydra
 
-first_request = Typhoeus::Request.new("www.example.com/posts/1.json")
+first_request = Typhoeus::Request.new("http://example.com/posts/1")
 first_request.on_complete do |response|
-  third_request = Typhoeus::Request.new("www.example.com/posts/3.json")
+  third_url = response.body
+  third_request = Typhoeus::Request.new(third_url)
   hydra.queue third_request
 end
-second_request = Typhoeus::Request.new("www.example.com/posts/2.json")
+second_request = Typhoeus::Request.new("http://example.com/posts/2")
 
 hydra.queue first_request
 hydra.queue second_request
-# this is a blocking call that returns once all requests are complete
-hydra.run
+hydra.run # this is a blocking call that returns once all requests are complete
 ```
 
-The execution of that code goes something like this. The first and second requests are built and queued. When hydra is run the first and second requests run in parallel. When the first request completes, the third request is then built and queued up. The moment it is queued Hydra starts executing it.  Meanwhile the second request would continue to run (or it could have completed before the first). Once the third request is done, `hydra.run` returns.
+The execution of that code goes something like this. The first and second requests are built and queued. When hydra is run the first and second requests run in parallel. When the first request completes, the third request is then built and queued, in this example based on the result of the first request. The moment it is queued Hydra starts executing it.  Meanwhile the second request would continue to run (or it could have completed before the first). Once the third request is done, `hydra.run` returns.
 
 How to get an array of response bodies back after executing a queue: