Unusable command on the sdk page

[murraybd]

The instructions at the top of https://github.com/wolfi-dev/tools/pkgs/container/sdk indicate to use the following command:

docker pull ghcr.io/wolfi-dev/sdk:sha256-a69b068bfde6e7d5c20f8cbe482939f795044d26cc5498b270ca75aba9b418f9.att

However, that command results in an error message:

sha256-a69b068bfde6e7d5c20f8cbe482939f795044d26cc5498b270ca75aba9b418f9.att: Pulling from wolfi-dev/sdk unsupported media type application/vnd.dsse.envelope.v1+json

I don't know where this instruction comes from but having a command at the top which is not working doesn't seem great.