Invalid URL to `auth-and-access.md` in README.md

[elias-pap]

README.md contains the following line:

"For more information, see Authentication and access control for AWS Secrets Manager."

However, the link to https://github.com/aws-actions/aws-secretsmanager-get-secrets/blob/main/auth-and-access.md returns a 404 - page not found.