Improve documentation of variables in defaults/main.yml

[DianaMariaDDM]

Feature Request or Enhancement

Documenting the variables of the role from defaults/main.yml in a more detailed and improved manner, might help users to carry modifications easier and understand the Ansible role better.

Summary of Request
I shall provide a PR with the necessary modifications for enhancing the documentation of the variables!

Describe Alternatives You've Considered
None

Suggested Code
The suggested code will be provided in a PR!