Minor README update
Minor README update

Jdesk/amazon-ecs-init,rjschwei/amazon-ecs-init,aws/amazon-ecs-init,rjschwei/amazon-ecs-init,aws/amazon-ecs-agent,aws/amazon-ecs-agent,2opremio/amazon-ecs-init,kiranmeduri/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent,2opremio/amazon-ecs-init,aws/amazon-ecs-agent,aws/amazon-ecs-init,aaithal/amazon-ecs-init,Jdesk/amazon-ecs-init,kiranmeduri/amazon-ecs-agent,kiranmeduri/amazon-ecs-agent,aws/amazon-ecs-agent,aaithal/amazon-ecs-init,aws/amazon-ecs-init