Replace :success by :first_order in tutorial

[tmigot]

In the tutorial, the profiles aren't showing anything.

[codecov]

Codecov Report

Merging #97 (3ace202) into main (88c1edd) will increase coverage by 0.86%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main      #97      +/-   ##
==========================================
+ Coverage   76.30%   77.17%   +0.86%     
==========================================
  Files          13       13              
  Lines         287      311      +24     
==========================================
+ Hits          219      240      +21     
- Misses         68       71       +3     

Impacted Files	Coverage Δ
src/run_solver.jl	84.21% <0.00%> (-1.91%)	⬇️
src/formats.jl	73.07% <0.00%> (-0.84%)	⬇️
src/latex_formats.jl	84.21% <0.00%> (-0.70%)	⬇️
src/profiles.jl	100.00% <0.00%> (ø)
src/bmark_utils.jl	100.00% <0.00%> (ø)
src/bmark_solvers.jl	100.00% <0.00%> (ø)
src/join.jl	80.76% <0.00%> (+0.76%)	⬆️
src/pkgbmark.jl	78.04% <0.00%> (+1.73%)	⬆️
src/highlighters.jl	31.25% <0.00%> (+4.58%)	⬆️

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[dpo]

Thank you!