docs: better comparison between non-JIT and JIT in Numba notebook

[Saransh-cpp]

Description

This was requested in openjournals/joss-reviews#7791 (comment)

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[Saransh-cpp]

@ianna @pfackeldey, would it be possible for you to look at the updated notebook once? Thank you!

[pfackeldey]

Hi @Saransh-cpp,
looks good to me!

One thing that you could think of is timing an explicit single run (%timeit -n 1) to include compile-time, and then a separate invocation (e.g. with 10 runs) to time the runtime of the compiled Numba kernel only.

[Saransh-cpp]

Thanks for the review, @pfackeldey! Updated the notebook!