Add FAQ answer about customization options

[dichotommy]

Make the distinction between:

• Configuration: command-line options and flags. Added at launch, and instance must be relaunched in order to alter them. Tend to be more technical and focus on instance behavior (not search behavior).
• Settings: index-specific settings, including a number of special field types. Tend to focus on manipulating search results/relevancy. These changes are indexed, meaning that altering the settings object requires all objects to be re-indexed (this process happens automatically). It also allows for a speed increase over run-time customization, such as parameters.
• Parameters: ways of altering the behavior and response of search. Focuses on getting information about and manipulating search results. Very fast operations (most of the time) that are performed at run-time, so could theoretically slow search results.

Instead of being an FAQ answer, this could also be an article-style guide introduction to the different ways of customizing your MeiliSearch experience (in /learn/advanced_topics/ for example). Or even a blog post!

[maryamsulemani97]

I think this can be an FAQ with a brief description of each option and then link each to its dedicated guide

[guimachiavelli]

In my crusade against the FAQ, I prefer the idea of a short guide briefly explaining the differences and then linking to each guide. learn/configuration/overview.md or something like that would be a good location.

[maryamsulemani97]

Agreed! 💯

[guimachiavelli]

I've ended up writing a few new articles in a row. Why don't you take this one as part of our push to reduce the number of open issues, @maryamsulemani97?