Guide: How to create and publish a Prisma Client extension

[ruheni]

Thoughts from @millsp:

• https://prisma-company.slack.com/archives/C016KUHB1R6/p1677228668750429
• Example https://github.com/millsp/prisma-local-client-extension-dev
• publish extensions in https://github.com/prisma/prisma-client-extensions

Comments to follow up on:

• Preview feature feedback: Prisma Client Extensions prisma#16500 (comment)
• Preview feature feedback: Prisma Client Extensions prisma#16500 (comment)
• Preview feature feedback: Prisma Client Extensions prisma#16500 (comment)
• Preview feature feedback: Prisma Client Extensions prisma#16500 (comment)
• Preview feature feedback: Prisma Client Extensions prisma#16500 (comment)
• Preview feature feedback: Prisma Client Extensions prisma#16500 (comment)

- [ ] https://github.com/prisma/docs/issues/4899
- [x] **Example repo**: Starter repository for building & publishing a Prisma Client extension
- [ ] Publish one or two extensions from [https://github.com/prisma/prisma-client-extensions](https://github.com/prisma/prisma-client-extensions/tree/main)

[ruheni]

Docs for this already exist here.

Action item: Publish an end-to-end tutorial on the Prisma blog