Documentation rework

[rhuss]

Documentation is incomplete and outdated
Documentation should be close to the generated standard Maven Plugin Documentation format.

This work should be tackled for the new rebranded fmp.

[lordofthejars]

After documentation is updated, the generation of documentation could be rendered using Antora (https://antora.org/). Here you can see an example https://lordofthejars.github.io/diferencia-docs-site/diferencia/0.5.0/index.html

Also, there is an Antora Maven plugin to generate it.

[stale]

This issue has been automatically marked as stale because it has not had any activity since 90 days. It will be closed if no further activity occurs within 7 days. Thank you for your contributions!