The first of all Thank you for great product.
Oftentime I read docs about how to use GoJs at GoJS Introduction -- Northwoods Software. This is very comprehensive document. But sometimes I want to mix several features and see how exactly It should work before I using it at my project and this is inconvinient to copy all code to some place like Codeopen, Plunker or some where else.
So I suggest you make you documentation like documentation of Angular Material (example - Angular Material UI component library)
Make button “Edit” at your code.
What do you think?