Review docs for how to "run multiple scripts in parallel"

[immavalls]

This is one of the most visited forum topics: https://community.k6.io/t/run-all-tests-scripts-in-parallel/1149/11, and recently we got https://community.k6.io/t/running-multiple-scripts-parallelly/6512/6 as well.

Does https://k6.io/docs/using-k6/scenarios/advanced-examples/ cover all the examples our users ask for? The page is already in the top results when we search for "run multiple scripts in parallel", so not sure if we need to add to the example.

I'm opening this issue to review if we should add anything, add this or some other content in a different section, or if it's already ok and enough.