docs: add monicayao as a contributor

[allcontributors]

Adds @monicayao as a contributor for doc.

This was requested by jbteves in this comment

[jbteves]

@emdupre weirdly this didn't cause a merge conflict unlike the previous ones. Maybe the bot's been repaired? I requested your review to make sure the bot created everything correctly. My feeling if this is what you want is that we should close the other PR I opened for @tsalo and then attempt to have the bot run on it a second time; thoughts?

[codecov]

Codecov Report

Merging #319 into master will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           master    #319   +/-   ##
======================================
  Coverage    49.2%   49.2%           
======================================
  Files          39      39           
  Lines        2140    2140           
======================================
  Hits         1053    1053           
  Misses       1087    1087

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[emdupre]

I think this looks great ! I'm happy to merge this as-is. Whether we should close and then re-open the pull request for Taylor (and you) is something I'm not clear on... will wait to see if Kirstie has feedback in that PR. But if that sounds like an OK plan to you feel free to merge this whenever you're ready !

[jbteves]

Approving per @emdupre's comments