Fixes to the Priority Hints article (#8114)
Fixes to the Priority Hints article (#8114)

In the *Get Ready for Priority Hints* article,

- Replaced `_de_prioritized` with `*de*prioritized` so that this renders as italic "de" + roman type "prioritized", rather than literally `_de_prioritized`.
- Added missing closing parenthesis.
google/WebFundamentals,lucab85/WebFundamentals,lucab85/WebFundamentals,myakura/WebFundamentals,google/WebFundamentals,google/WebFundamentals,lucab85/WebFundamentals,myakura/WebFundamentals,lucab85/WebFundamentals,myakura/WebFundamentals,myakura/WebFundamentals,google/WebFundamentals