docs: add homebrew installation note

[chenrui333]

relates to Homebrew/homebrew-core#150802

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (09c5eb6) 75.47% compared to head (39ffc49) 75.47%.
Report is 1 commits behind head on develop.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #225   +/-   ##
========================================
  Coverage    75.47%   75.47%           
========================================
  Files           16       16           
  Lines         1097     1097           
  Branches       161      161           
========================================
  Hits           828      828           
  Misses         233      233           
  Partials        36       36           

Flag	Coverage Δ
unit	75.47% <ø> (ø)

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[shadycuz]

Thank you so much for taking the time to adding cf2tf to homebrew <3