docs: fix grammatical constructs and pluralization in FAQ documentation

[shubhtrek]

Description

While reviewing the Karmada FAQ documentation, I noticed a few minor grammatical issues, awkward sentence structures, and singular/plural inconsistencies. These small improvements can make the documentation clearer and more professional for new users and contributors.

I would like to update the FAQ document by refining question phrasing, correcting grammar, and improving readability without changing the original meaning of the content.

Proposed Improvements

• Fix grammatical question structures
• Correct singular/plural inconsistencies
• Improve sentence readability and wording
• Maintain consistency across the FAQ documentation

File

docs/faq/faq.md

[apoorvslst]

Hi @shubhtrek, are you still planning to work on this? Happy to pick it up if not, or if you'd like I can help review once you open a PR." That's the honest way to handle it, since they explicitly claimed intent. Don't silently duplicate their work.