idea: render a data-dictionary direct from the json schema

[monkeypants]

further to #13, it would be really cool if there was something like a data-definition table in the markdown of the page that was rendered directly from the json schema itself. This would be cool because whenever the schema changed, the documentation would automatically be updated.

For example https://github.com/adobe/jsonschema2md/ (I have never used it, was just the first thing I found when I searched).

I think the current edi3.org site is rendered using Jekyll. @kshychko can you please provide a hint of how someone might make a PR to do this? what should they look at to figure it out?

[shujingliew]

we have indicated a link that directs to the following: https://github.com/Open-Attestation/schema-doc/blob/master/document/tradetrust-properties-attachments-to-the-document-attached-file.md