update readme with user data
update readme with user data

Signed-off-by: dheerajd-msys <61f66facee5fad0fed1b321272a4adb263605e30@msystechnologies.com>

ClogenyTechnologies/knife-ec2,MsysTechnologiesllc/knife-ec2,chef/knife-ec2,chef/knife-ec2,MsysTechnologiesllc/knife-ec2