### Description

Fixes minimal typo in code gen docs:

- `promps` -> `prompts`

### Testing Instructions

Read docs changes, confirm I know how to spell 🤷 

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### Notes

First chore contribution here! Read through the contributing guide but
didn't see anything for changesets or micro-PRs. Let me know if I'm
missing anything, thanks.

Co-authored-by: Chris Olszewski <chris.olszewski@vercel.com>