Improve the API reference descriptions

[starlightknown]

In API reference we see descriptions of API specs i.e for example here in attachments: https://developer.devrev.ai/public/api-reference/artifacts/attachments
You can improve this information or add more context if you have used the APIs.

You can edit

fern-api-docs/fern/docs/pages/entities/artifacts.mdx

Line 1 in ea40bbb

`artifacts` endpoint

this file for example.

You can add files for each description in the same folder