docs: add DylanPiercey as a contributor

[allcontributors]

Adds @DylanPiercey as a contributor for ideas.

This was requested by tunnckoCore in this comment

[codecov]

Codecov Report

Merging #560 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #560   +/-   ##
=======================================
  Coverage   87.15%   87.15%           
=======================================
  Files           8        8           
  Lines         576      576           
  Branches       99       99           
=======================================
  Hits          502      502           
  Misses         69       69           
  Partials        5        5

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