chore(docs): update renderer docs

[stephenhutchings]

Marked version: latest

Markdown flavor: n/a

Description

• Fixes Renderer not merged when used in marked() options #2082

Contributor

• Test(s) exist to ensure functionality and minimize regression (if no tests added, list tests covering this PR); or,
• no tests required for this PR.
• If submitting new feature, it has been documented in the appropriate places.

Committer

In most cases, this should be a different person than the contributor.

• CI is green (no forced merge required).
• Squash and Merge PR following conventional commit guidelines.

[vercel]

The latest updates on your projects. Learn more about Vercel for Git ↗︎

Name	Status	Preview	Comments	Updated (UTC)
marked-website	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 22, 2023 7:04am

[UziTech]

Thanks for updating this! 💯

[stephenhutchings]

@UziTech No problem, and thanks a lot for your helpful comments!