show class identifiers in spec #97
Description
The first term I stumbled upon was https://ekgf.github.io/dprod/#dataserviceshape .
It says just "DataService".
So I thought "are they redefinining dcat:DataService? That isn't gonna fly".
With some digging I can see you reuse dcat:DataService. But it would be nicer to mention the "Identifier:" of each class, just like you do for properties.