docs: add mkurcius as a contributor for code

[allcontributors]

Add @mkurcius as a contributor for code.

This was requested by ph-fritsche in this comment

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[codecov]

Codecov Report

Merging #700 (0124ab0) into master (f8f00d4) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##            master      #700   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           50        50           
  Lines          934       934           
  Branches       368       368           
=========================================
  Hits           934       934           

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[github-actions]

🎉 This PR is included in version 13.2.1 🎉

The release is available on:

• npm package (@latest dist-tag)
• GitHub release

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