AWS Elastic Container Service - AWS Keypair documentation may have changed since tutorial created

[rudytrubitt]

The link to AWS documentation on Keypairs (https://docs.aws.amazon.com/cli/latest/userguide/cli-chap-configure.html#cli-quick-configuration) doesn't seem to match the tutorial text. For example, the instruction "Download the keypair and store it in a safe location" left me confused, as following the AWS docs had me create and download an RSA .pem key, which is neither the public nor the secret key. I eventually resolved this through the "My Security Credentials" which is part of my user drop-down menu in the AWS web UI.