Add Mkdocs site

[fredhersch]

Description of what I changed

Added mkdocs site for documentation

E2E test

TESTED: Locally

Checklist: I completed these to help reviewers :)

• I have read and will follow the review process.
• I am familiar with Google Style Guides for the language I have coded in.

No? Please take some time and review Java and Python style guides.

• My IDE is configured to follow the Google code styles.

  No? Unsure? -> configure your IDE.

• I have added tests to cover my changes. (If you refactored existing code that was well tested you do not have to add tests)

• I ran mvn clean package right before creating this pull request and added all formatting changes to my commit.

• All new and existing tests passed.

• My pull request is based on the latest changes of the master branch.

  No? Unsure? -> execute command git pull --rebase upstream master

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.84%. Comparing base (f0788a6) to head (83ecbec).

Additional details and impacted files

@@            Coverage Diff            @@
##               main     #299   +/-   ##
=========================================
  Coverage     69.84%   69.84%           
  Complexity      342      342           
=========================================
  Files            26       26           
  Lines          1343     1343           
  Branches        212      212           
=========================================
  Hits            938      938           
  Misses          318      318           
  Partials         87       87           

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