Add tutorials for running Macaron

[behnazh-w]

We need to add tutorials based on the Docker run script for supported inputs and scenarios:

• Using remote GitHub URL path, branch, and commit as input
• Using SBOM as input
• Using locally cloned repo.

[tromai]

Should we include the use cases for the policy engine too?

[behnazh-w]

Should we include the use cases for the policy engine too?

That can be done in a separate PR. But feel free to add TODOs for now.