docs: Add more information or documentation to question about media queries

[codesandtags]

After reading the following quiz question, I have notice it needs/requires more information or documentation given the current explanation is very simple and lacks of more context or example.

https://www.greatfrontend.com/questions/quiz/have-you-used-or-implemented-media-queries-or-mobile-specific-layouts-css

I'm putting this docs issue to review future updates on the question.