Update to convention v1

[irm-codebase]

After this is merged, the module can have its first release!

Summary of changes in this pull request

• Pin gregor to v0.1.0
• Use convention v1
• Improved docs with some examples.

Reviewer checklist

• There are no pip dependencies in the module's environment files (workflow/envs/).
• All rules use pathvars (e.g., <results>) in their inputs and outputs.
• The integration test-suite is successful, including:
  • pre-commit.ci tests pass.
  • tests pass for all relevant OS configurations (linux, osx, windows).
• Module documentation is up-to-date, including:
  • INTERFACE.yaml mentions all relevant pathvars and wildcards.
  • README.md describes how to use the module and has the necessary citations.

[jnnr]

Nice! Just a few comments, mainly on the documentation of config options.

[irm-codebase]

@jnnr fixed!
Ok to merge?