doc: add deploy on vercel walkthrough

[vercel[bot]]

@hongchaodeng is attempting to deploy a commit to the Replicate Team on Vercel.

A member of the Team first needs to authorize it.

[hongchaodeng]

Please help authorize it. Thanks! @cbh123 @fofr @zeke @mattt

[vercel[bot]]

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

Name	Status	Preview	Comments	Updated (UTC)
zoo	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 14, 2023 4:19pm

[zeke]

It looks like there's a stray duplicate file here:

[hongchaodeng]

@zeke Nice catch! fixed :)

[zeke]

Nice work @hongchaodeng! 🎉

Thanks for working on this.