Add missing documentation

[cbaker6]

No description provided.

[codecov]

Codecov Report

Merging #67 (033d7a3) into main (1db0674) will increase coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main      #67      +/-   ##
==========================================
+ Coverage   78.09%   78.13%   +0.04%     
==========================================
  Files          52       52              
  Lines        4620     4620              
==========================================
+ Hits         3608     3610       +2     
+ Misses       1012     1010       -2     

Impacted Files	Coverage Δ
Sources/ParseSwift/Coding/Extensions.swift	71.42% <ø> (ø)
Sources/ParseSwift/Coding/ParseCoding.swift	86.95% <ø> (ø)
Sources/ParseSwift/Objects/ParseUser.swift	75.04% <0.00%> (+0.17%)	⬆️
Sources/ParseSwift/Objects/ParseObject.swift	76.31% <0.00%> (+0.29%)	⬆️

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