There are content-as-an-API services (e.g. Contentful, Prismic.io, CloudCMS) and some editors (e.g potion, Content Editor) to make managing markdown on GitHub e

There are content-as-an-API services (e.g. Contentful, Prismic.io, CloudCMS) and some editors (e.g potion, Content Editor) to make managing markdown on GitHub easier. Either should help with non-tech people creating content. Full disclosure: I work for Contentful.