docs: adding command description

[lechnerc77]

Purpose

• Add command description to commands including examples
• closes #107

Does this introduce a breaking change?

[ ] Yes
[X] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[ ] Feature
[ ] Refactoring (no functional changes, no api changes)
[X] Documentation content changes
[ ] Other... Please describe:

How to Test

• Test the code via automated test

make test

• Additional test steps

Execute --help for the different commands

What to Check

Verify that the following are valid:

• Automated tests are executed successfully
• Help is available for each command as aligned with UA Team

Other Information

Checklist for reviewer

The following organizational tasks must be completed before merging this PR:

• [X] The PR is assigned to the Project board and a status is set (typically "in review").
• [X] The PR has the matching labels assigned to it.
• [X] The PR has a milestone assigned to it.
• [X] If the PR closes an issue, the issue is referenced.
• [X] Possible follow-up issues are created and linked.