Supporting multiple ports per host in JSON (fixes #11)

[vania-pooh]

No description provided.

[codecov-io]

Codecov Report

Merging #12 into master will increase coverage by 2.5%.
The diff coverage is 100%.

@@          Coverage Diff           @@
##           master   #12     +/-   ##
======================================
+ Coverage    47.5%   50%   +2.5%     
======================================
  Files           4     4             
  Lines         200   210     +10     
======================================
+ Hits           95   105     +10     
  Misses        103   103             
  Partials        2     2

Flag	Coverage Δ
#unittests	50% <100%> (+2.5%)	⬆️

Impacted Files	Coverage Δ
cmd/generate.go	67.56% <100%> (+2.35%)	⬆️

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