Generate "Build Metadata Reference" from JSON schema

There are some projects turning a JSON schema into a human-friendly documentation. I'd suggest https://github.com/adobe/jsonschema2md here:

Documenting and validating complex JSON Schemas can be hard. This tool makes it easier by providing a number of scripts that can turn JSON Schema files into readable Markdown documentation that is ready for consumption on GitHub or processed using Jekyll or other static site generators.

So this seems to work with Jekyll.