The documentation is missing versioning

[Ludee]

Description of the issue

The documentation is missing versioning.
The MkDocs should be specific to each software version.

Ideas of solution

There is a specific package called mike to handle the versions.
Sources:

• https://squidfunk.github.io/mkdocs-material/setup/setting-up-versioning/
• https://github.com/jimporter/mike

Workflow checklist

• I am aware of the workflow in CONTRIBUTING.md

[Ludee]

In order to have the version slider on older versions before mike has been implemented, simply add it to mkdocs.yml after checking out the Git Tag and then register the version with mike.

[Ludee]

In order to have the latest develop branch with mike versioning, update the stale GitHub workflow to push the develop branch after a PR.