Protocol docs

[Edoardo-Pedicillo]

This PR implements the documetation for

• avoided crossing
• readout mitigation matrix
• readout optimization

Checklist:

• Reviewers confirm new code works as expected.
• Tests are passing.
• Coverage does not decrease.
• Documentation is updated.
• Compatibility with Qibo modules (Please edit this section if the current pull request is not compatible with the following branches).
  • Qibo: master
  • Qibolab: main
  • Qibolab_platforms_qrc: main

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.47%. Comparing base (c4fdce8) to head (861d279).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #983      +/-   ##
==========================================
- Coverage   97.50%   97.47%   -0.04%     
==========================================
  Files         123      123              
  Lines        9701     9701              
==========================================
- Hits         9459     9456       -3     
- Misses        242      245       +3     

Flag	Coverage Δ
unittests	97.47% <ø> (-0.04%)	⬇️

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see 2 files with indirect coverage changes