Fix Advanced example in doc

[rodolfocarobene]

Closes #901 (work in progress for now)

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

[alecandido]

I didn't suggest this before, since it will change again with #869. However, that change will be just an addition, so we should be able to keep the updated material that will be produced in this PR.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 97.42%. Comparing base (0625d90) to head (1305045).

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #903      +/-   ##
==========================================
- Coverage   97.48%   97.42%   -0.07%     
==========================================
  Files         116      116              
  Lines        8882     8882              
==========================================
- Hits         8659     8653       -6     
- Misses        223      229       +6     

Flag	Coverage Δ
unittests	97.42% <ø> (-0.07%)	⬇️

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see 3 files with indirect coverage changes

[rodolfocarobene]

Now everything should be working. I guess that there is no need to expand more since things will soon change with #869

[andrea-pasquale]

Thanks @rodolfocarobene, LGTM.

[alecandido]

I still have to run, to confirm it is actually working, but just reading it looks good :)

[andrea-pasquale]

@scarrazza after I merge this PR we can proceed with the release for qibocal.