Yes, it fills these out after using the template.

Currently these are predefined and change name of the package to the name of the repository, owner to github handle etc.

You can read more about it here: https://inovintell.github.io/docs-template/initialization/

Rest of the data can be adjusted in a standard manner (e.g. by adjusting README.md, pyproject.toml or others), is there anything you would like to see?

Regarding README.md - it is empty as it's easier to use and won't cluuter README.md of projects using the template, but we are likely to give a skeleton. Usage is defined on the right hand side in the linked doucmnetation.