Bug 1334 documentation mkdocs may break support for all existing plugins and themes soon

[evavormschlag]

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Reference Issues/PRs

Fix #1334

Description, Motivation and Context

Provide a short description of your changes.

Changes

Changes the documentation package to properdocs instead of mkdocs

Type Of Changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

What is Missing?

just a precaution because mkdocs will be updated to another version

Checklist

Go over all the following points, and put an x in all the boxes that apply.
Should there be a good argument to differ, please provide a reasoned explanation.

• My change is based on the latest stage of the develop branch.
• My change required a change of the documentation, which has been done.
• I checked that the documentation can be build, visualizes everything as expected, and does not contain any warnings.
• I have added/adapted tests to cover my changes.
• The tests can be executed successfully.
• I have added a description of the changes to CHANGELOG.rst.

Any other comments?