README.md in elasticity-3.0.3 vs README.md in elasticity-3.0.4

@@ -104,19 +104,21 @@
 These options are sent up as part of job flow submission (i.e. ```JobFlow#run```), so be sure to configure these before running the job.
 
 ```ruby
 jobflow.name                              = 'Elasticity Job Flow'
 
+# For new AWS accounts, this is required to be set
+jobflow.ec2_subnet_id                     = nil
+
 jobflow.action_on_failure                 = 'TERMINATE_JOB_FLOW'
 jobflow.keep_job_flow_alive_when_no_steps = false
 jobflow.ami_version                       = 'latest'
 jobflow.hadoop_version                    = '1.0.3'
 jobflow.log_uri                           = nil
 jobflow.enable_debugging                  = false # Requires a log_uri to enable
 
 jobflow.ec2_key_name                      = nil
-jobflow.ec2_subnet_id                     = nil
 jobflow.visible_to_all_users              = false
 jobflow.placement                         = 'us-east-1a'
 jobflow.instance_count                    = 2
 jobflow.master_instance_type              = 'm1.small'
 jobflow.slave_instance_type               = 'm1.small'
@@ -298,11 +300,11 @@
 ### Adding an S3DistCp Step
 
 For a complete list of supported arguments, please see the [Amazon EMR guide](http://docs.aws.amazon.com/ElasticMapReduce/latest/DeveloperGuide/UsingEMR_s3distcp.html).
 
 ```ruby
-# Path to your script, plus arguments (both symbols and strings are supported)
-copy_step = Elasticity::S3DistCpStep.new(:arg1 => 'value1', 'arg2' => 'value2')
+copy_step = Elasticity::S3DistCpStep.new
+copy_step.arguments = [...]
 
 jobflow.add_step(copy_step)
 ```
 
 ## 6 - Upload Assets (optional)