message: Improve command in README.md for listing AWS instances
diff: @@ -49,9 +49,9 @@ Then:
  1. List all running EC2 instances:
  ```shell
  -$ AWS_PROFILE=xain-xain aws ec2 describe-instances --filters Name=instance-state-code,Values=16 | jq '.Reservations[].Instances[].PublicIpAddress'
  -"35.158.158.119"
  -"18.185.67.166"
  +$ AWS_PROFILE=xain-xain aws ec2 describe-instances --filters Name=instance-state-code,Values=16 | jq '.Reservations[].Instances[] | "\(.Tags[].Value), \(.PublicIpAddress)"'
  +InstanceName1, "35.158.158.119"
  +OtherInstanceName2, "18.185.67.166"
  ```
  2. Connect to one of the running instances using ssh:
  