You mean by overriding the JSON type? (like https://www.gatsbyjs.com/docs/reference/graphql-data-layer/schema-customization/)
I already played around with all of this stuff from that page and tried to build my own types, but always ended up with something like “Type definition…is not executable”.
All my customized types were visible in the gatsby graphql playground, but I was not able to override the json type.
I definitely have to learn typescript and graphql sdl. But i don’t have the time for it right now, unfortunately.
A markdown parser won’t make sense in this case, I think (or I don’t get the point).