docs: show required DGC scopes per tool in README

[bobby-smedley]

🎯 What does this PR do?

show required DGC scopes per tool in README

✅ Checklist

• My code follows the style guidelines of this project.
• I have performed a self-review of my own code.
• I have commented my code, particularly in hard-to-understand areas.
• I have made corresponding changes to the documentation (if needed).
• My commit messages follow the Conventional Commits standard.