Improving documentation for QuantumNetwork class + bug fix

[Canoming]

Checklist:

• Reviewers confirm new code works as expected.
• Tests are passing.
• Coverage does not decrease.
• Documentation is updated.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (2bfd6ec) 100.00% compared to head (11e8e3d) 99.99%.
Report is 2 commits behind head on master.

❗ Current head 11e8e3d differs from pull request most recent head 09256fc. Consider uploading reports for the commit 09256fc to get more accurate results

Additional details and impacted files

@@             Coverage Diff             @@
##            master    #1192      +/-   ##
===========================================
- Coverage   100.00%   99.99%   -0.01%     
===========================================
  Files           69       69              
  Lines        10107    10106       -1     
===========================================
- Hits         10107    10105       -2     
- Misses           0        1       +1     

Flag	Coverage Δ
unittests	99.99% <100.00%> (-0.01%)	⬇️

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[codecov-commenter]

Codecov Report

Attention: 4 lines in your changes are missing coverage. Please review.

Comparison is base (8e9d1c0) 100.00% compared to head (a18089b) 99.96%.
Report is 52 commits behind head on master.

❗ Current head a18089b differs from pull request most recent head d5f8ab1. Consider uploading reports for the commit d5f8ab1 to get more accurate results

Files	Patch %	Lines
src/qibo/quantum_info/quantum_networks.py	84.61%	4 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##            master    #1192      +/-   ##
===========================================
- Coverage   100.00%   99.96%   -0.04%     
===========================================
  Files           68       68              
  Lines        10215    10220       +5     
===========================================
+ Hits         10215    10216       +1     
- Misses           0        4       +4     

Flag	Coverage Δ
unittests	99.96% <84.61%> (-0.04%)	⬇️

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[renatomello]

@Canoming let us know if you plan on adding more things to this PR, otherwise we can merge it

[Canoming]

@Canoming let us know if you plan on adding more things to this PR, otherwise we can merge it

I'm trying to write a small use case of QuantumNetwork. But I would like to first check if there is a reason we chose the function name channel over is_channel: #1189 (comment) . I can commit the use case after we confirm the function name

[renatomello]

@Canoming let us know if you plan on adding more things to this PR, otherwise we can merge it

I'm trying to write a small use case of QuantumNetwork. But I would like to first check if there is a reason we chose the function name channel over is_channel: #1189 (comment) . I can commit the use case after we confirm the function name

It's already changed

Code still in progress

[Canoming]

I have updated the test and added a tutorial for the QuantumNetwork. The tests are not ideal at this stage as I didn't test the output of @. However, I need to implement a more complex link_product for a better test, which is planned for the next step.