adds comm support statement

[MaureenElsberry]

Well, this is failing which I don't really get why...

[codecov-io]

Codecov Report

Merging #56 into master will increase coverage by 0.8%.
The diff coverage is n/a.

@@           Coverage Diff            @@
##           master     #56     +/-   ##
========================================
+ Coverage    97.6%   98.4%   +0.8%     
========================================
  Files          10      10             
  Lines         125     125             
  Branches        4       4             
========================================
+ Hits          122     123      +1     
+ Misses          3       2      -1

Impacted Files	Coverage Δ
...ortysevendeg/scalacheck/datetime/GenDateTime.scala	100% <0%> (+20%)	⬆️

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