docs: fixes wrong syntax for admonition !minor

[axel-kah]

This fixes an inconsistent use of admontions in the tutorial section.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 93.92%. Comparing base (86c0206) to head (9df3475).
Report is 3 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #206   +/-   ##
=======================================
  Coverage   93.92%   93.92%           
=======================================
  Files          25       25           
  Lines        1565     1565           
  Branches      311      311           
=======================================
  Hits         1470     1470           
  Misses         69       69           
  Partials       26       26           

Flag	Coverage Δ
python-3.10	93.92% <ø> (ø)
python-3.11	93.92% <ø> (ø)
python-3.8	93.90% <ø> (ø)
python-3.9	93.90% <ø> (ø)

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