[docs] Update CLI docs

[slarse]

Just a minor update to the phrasing in the CLi docs

[codecov]

Codecov Report

Merging #94 (eb1e0d5) into master (fc458d9) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #94   +/-   ##
=======================================
  Coverage   93.75%   93.75%           
=======================================
  Files           8        8           
  Lines         432      432           
  Branches       65       65           
=======================================
  Hits          405      405           
  Misses         16       16           
  Partials       11       11           

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