[docs] add tutorial on parallelism

[odow]

x-ref #2348

Not really sure how this will work in CI...

https://jump.dev/JuMP.jl/previews/PR3231/tutorials/algorithms/parallelism/

[codecov]

Codecov Report

Base: 98.07% // Head: 98.07% // No change to project coverage 👍

Coverage data is based on head (08ada62) compared to base (50234cb).
Patch has no changes to coverable lines.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #3231   +/-   ##
=======================================
  Coverage   98.07%   98.07%           
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  Files          34       34           
  Lines        4632     4632           
=======================================
  Hits         4543     4543           
  Misses         89       89           

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[odow]

So I think the issue is JuliaDocs/IOCapture.jl#14. I need to look into this more

[blegat]

Nice addition

[odow]

I've set this up so that it doesn't run in CI. Instead, I ran locally and then copy-pasted the results. I'll take a look into the interaction between Literate, Documenter, and multithreading, but it seems like a hard problem to solve.