Add format check

[blegat]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 76.19048% with 5 lines in your changes missing coverage. Please review.
✅ Project coverage is 72.77%. Comparing base (dbba4dd) to head (1319555).
⚠️ Report is 2 commits behind head on main.

Files with missing lines	Patch %	Lines
src/nonlinear.jl	72.72%	3 Missing ⚠️
src/vertical.jl	75.00%	2 Missing ⚠️

Additional details and impacted files

@@           Coverage Diff           @@
##             main      #11   +/-   ##
=======================================
  Coverage   72.77%   72.77%           
=======================================
  Files           5        5           
  Lines         202      202           
=======================================
  Hits          147      147           
  Misses         55       55           

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