docs: Update documentation with new commands and a quick explanation about **main** and **ext** profile/plugin

[xmnlab]

Pull Request description

Update documentation, including the new commands and a quick explanation about main and ext profile/plugin.

How to test these changes

• ...

Pull Request checklists

This PR is a:

• [ ] bug-fix
• [ ] new feature
• [ ] maintenance

About this PR:

• [ ] it includes tests.
• [ ] the tests are executed on CI.
• [ ] the tests generate log file(s) (path).
• [ ] pre-commit hooks were executed locally.
• [ ] this PR requires a project documentation update.

Author's checklist:

• [ ] I have reviewed the changes and it contains no misspelling.
• [ ] The code is well commented, especially in the parts that contain more complexity.
• [ ] New and old tests passed locally.

Additional information

Reviewer's checklist

Copy and paste this template for your review's note:

## Reviewer's Checklist

- [ ] I managed to reproduce the problem locally from the `main` branch
- [ ] I managed to test the new changes locally
- [ ] I confirm that the issues mentioned were fixed/resolved .

[xmnlab]

as it is just about documentation, I am merging this PR, so I can cut a new release.

[github-actions[bot]]

:tada: This PR is included in version 1.6.0 :tada:

The release is available on:

• 1.6.0
• GitHub release

Your semantic-release bot :package::rocket: