Docs: add explanation question and configs

[stephanie0x00]

Changes

This PR adds an explanation on what the Question and Config objects do, as this was currently missing from the docs.

Issue link

n/a.

Demo

n/a

QA notes

Double check if everything is correct and if no important bits are forgotten. :)

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Code Checklist

• All the commits in this PR are properly PGP-signed and verified.
• This PR only contains functionality relevant to the issue.
• I have written unit tests for the changes or fixes I made.
• I have checked the documentation and made changes where necessary.
• I have performed a self-review of my code and refactored it to the best of my abilities.

• Tickets have been created for newly discovered issues.
• For any non-trivial functionality, I have added integration and/or end-to-end tests.
• I have informed others of any required .env changes files if required and changed the .env-dist accordingly.
• I have included comments in the code to elaborate on what is not self-evident from the code itself, including references to issues and discussions online, or implicit behavior of an interface.

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Checklist for code reviewers:

Copy-paste the checklist from the docs/source/templates folder into your comment.

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Checklist for QA:

Copy-paste the checklist from the docs/source/templates folder into your comment.

[ammar92]

Nice work, looks good to me! However there seems to be more implementation changes than doc updates in this PR. Could it be that the branch was created from the wrong base or hasn't been updated recently?

[stephanie0x00]

Can be closed as the current version of the docs is more descriptive than this PR.