Plugin utils for documentation generation

[jooola]

I am contributing to a gatsby plugin and I've inspired myself from the gatsby-source-wordpress plugin, in order to generate the plugin options documentation. See https://github.com/gatsbyjs/gatsby/blob/master/packages/gatsby-source-wordpress/generate-plugin-options-docs.js

And I was wondering why not export these utilities to the gatsby-plugin-utils to unify a way to generate a plugin documentation from the a Joi options schema declaration ?

I don't know if this reduce any flexibility from the plugins options, but this should enhance many development workflow.

Maybe this utility also need to generate some typescript types, but this should be doable.

Is this a good idea ? Should I propose a PR or POC somewhere ? Any thoughts ?