join instructions for linux and macos

[blankdots]

• instructions for macos and linux are the same.
• add reference for examples folder

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 69.72%. Comparing base (88c2108) to head (ddb1e90).

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Additional details and impacted files

@@           Coverage Diff           @@
##           master     #122   +/-   ##
=======================================
  Coverage   69.72%   69.72%           
=======================================
  Files           6        6           
  Lines         862      862           
=======================================
  Hits          601      601           
  Misses        141      141           
  Partials      120      120           

Flag	Coverage Δ
unittests	69.72% <ø> (ø)

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