FAQ: Replace Max's pronoun with his name

- For some reason, the documented way of disabling a style for a
  specific section of Markdown text[1] didn't work for disabling the
  pronoun lint here. This is about the only place we have a legitimate
  need for it. Instead, sadly, squash this linting error by using his
  name.
- Also adjust the sentence for further clarity in light of this.

[1] - https://errata-ai.github.io/vale/config/#ignoring-parts-of-your-documents