In manually reviewing the JSON embedded in the spec, I found numerous cases where the content was invalid from a syntactic or other validation point of view - and I'm certain that I didn't find all of the issues.  We need to extend the publisher to:
a) support validating custom JSON structures against a JSON schema
b) allow embedding example instances (and fragments of them) into the text of an IG, complete with collapsable ellipses

NOTE: This isn't a small amount of effort - probably 50 hours or so.  However, it'll be useful to allow embedding examples in the text of all Da Vinci IGs.