Tutorials overhaul

[cbouy]

Closes #123

[codecov]

Codecov Report

Patch coverage: 77.14% and project coverage change: -0.43% ⚠️

Comparison is base (5acfa79) 95.80% compared to head (ad19df9) 95.38%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #150      +/-   ##
==========================================
- Coverage   95.80%   95.38%   -0.43%     
==========================================
  Files          19       20       +1     
  Lines        1358     1386      +28     
==========================================
+ Hits         1301     1322      +21     
- Misses         57       64       +7     

Files Changed	Coverage Δ
prolif/parallel.py	78.04% <0.00%> (ø)
prolif/plotting/complex3d.py	93.97% <37.50%> (-6.03%)	⬇️
prolif/plotting/barcode.py	78.88% <50.00%> (-1.58%)	⬇️
prolif/__init__.py	100.00% <100.00%> (ø)
prolif/fingerprint.py	98.24% <100.00%> (+0.02%)	⬆️
prolif/plotting/residues.py	100.00% <100.00%> (ø)

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