README.md in elasticity-6.0.7 vs README.md in elasticity-6.0.8

@@ -130,9 +130,11 @@
 jobflow.region                            = 'us-east-1'
 jobflow.instance_count                    = 2
 jobflow.master_instance_type              = 'm1.small'
 jobflow.slave_instance_type               = 'm1.small'
 jobflow.additonal_info                    = 'additonal info'
+jobflow.additional_master_security_groups = ['sg-1111', 'sg-2222']
+jobflow.additional_slave_security_groups  = ['sg-1111', 'sg-2222']
 ```
 
 ### EMR Applications (optional needs release_label >= 4.0.0)
 With the release of EMR 4.0.0 you can now supply applications which EMR will install for you on boot(rather than a manual bootstrap action. Which you can still use if required). You must set the `release_label` for the jobflow(>=4.0.0)