update readme: add informations about the default tag option usage

[zak905]

What type of PR is this? (check all applicable)

• Refactor
• Feature
• Bug Fix
• Optimization
• Documentation Update
• Go Version Update
• Dependency Update

Description

This PR complements #183 by adding informations about how to use the default tag option in the README

Related Tickets & Documents

#183
#182

Added/updated tests?

• Yes
• No, and this is why: this PR deals with documentation only.
• I need help with writing tests

Run verifications and test

• make verify is passing
• make test is passing

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 86.59%. Comparing base (eda9c33) to head (cfceb7f).

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #209   +/-   ##
=======================================
  Coverage   86.59%   86.59%           
=======================================
  Files           4        4           
  Lines         843      843           
=======================================
  Hits          730      730           
  Misses         96       96           
  Partials       17       17           

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[AlexVulaj]

Thanks for contributing @zak905 - this is a helpful writeup.

[zak905]

sure thing!