Documented authentication to GitHub Packages

[freemanjp]

To download the artifact.

[codecov]

Codecov Report

Merging #302 (196e654) into master (8eadcdb) will not change coverage.
The diff coverage is n/a.

@@            Coverage Diff            @@
##             master     #302   +/-   ##
=========================================
  Coverage     85.02%   85.02%           
  Complexity       89       89           
=========================================
  Files             8        8           
  Lines           494      494           
  Branches         82       82           
=========================================
  Hits            420      420           
  Misses           35       35           
  Partials         39       39           

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