add examples to readme

[piccione99]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 99.76%. Comparing base (2ff7372) to head (8e6735a).
Report is 3 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #295   +/-   ##
=======================================
  Coverage   99.76%   99.76%           
=======================================
  Files          25       25           
  Lines         840      840           
=======================================
  Hits          838      838           
  Misses          2        2           

Flag	Coverage Δ
unittests	99.76% <ø> (ø)

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[denopink]

want to add this as example test in a _test.go file?

https://go.dev/blog/examples