🐞 Fix mkdocs related issues

[billsioros]

What happened?

Fix the following issues regarding mkdocs:

• Configure watch directory via the new watch mkdocs option
• Mkdocstrings __version__ deprecation warnings
• MIT License logo should be replaced with the following code snippet:

<a href="https://opensource.org/licenses/MIT">
    <img align="left" src="https://i0.wp.com/opensource.org/wp-content/uploads/2023/03/cropped-OSI-horizontal-large.png?fit=640%2C229&ssl=1">
</a>

How can we reproduce the bug?

mkdocs serve

Relevant stack trace

INFO     -  Building documentation...
INFO     -  mkdocstrings: DEPRECATION: mkdocstrings' watch feature is deprecated in favor of MkDocs' watch feature,
            see https://www.mkdocs.org/user-guide/configuration/#watch
INFO     -  DeprecationWarning: 'version' is deprecated. Use '__version__' instead.
              File
            "/root/.cache/pypoetry/virtualenvs/roughml-4Ze8SC3I-py3.9/lib/python3.9/site-packages/markdown/__init__.py",
            line 51, in __getattr__
                warnings.warn(
              File
            "/root/.cache/pypoetry/virtualenvs/roughml-4Ze8SC3I-py3.9/lib/python3.9/site-packages/mdx_truly_sane_lists/__init__.py",
            line 1, in
                from .mdx_truly_sane_lists import makeExtension

Operating System (OS)

macOS, Windows, Linux

Python version

3.7, 3.8, 3.9

Is this a duplicate issue?

• I confirm that this is not a duplicate issue

Have you upgraded to the latest version?

• I confirm that I have upgraded to the latest version

Code of Conduct

• I agree to follow this project's Code of Conduct