Update HARDHAT_README.md

[fulldecent]

No description provided.

[codecov-commenter]

Codecov Report

Merging #646 (eb83455) into master (f0aa876) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #646   +/-   ##
=======================================
  Coverage   98.68%   98.68%           
=======================================
  Files          22       22           
  Lines         986      986           
=======================================
  Hits          973      973           
  Misses         13       13           

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[cgewecke]

Thanks!