Update ogms.md

[zhengj2007]

Add usage

[matentzn]

This is not the intention of the usage field - if you want to show usage, you should show how the ontology is used by a resource, like a database, and provide a verifiable link to that resource. A simple owl import does not in and all by itself constitute usage. There are some fringe cases where you can make an argument like that (RO, COB, OMO, etc). Is there now online database using OGMS?

[nataled]

I'm going to assume that the description is a roundabout way of saying that OGMS terms have been imported into the indicated ontologies, which would make the example valid. However, the key component 'url' is missing.

To fix: Replace 'type' (which doesn't appear in any example for P9) with 'url'. Then provide the IRI for an OGMS term used in one of the indicated ontologies. I'm not sure if multiple 'url' tags are allowed here but, if so, take advantage of that to provide links for each of the named ontologies. Alternatively, split the usages by ontology.

[zhengj2007]

I intended to show that multiple ontologies import and utilize OGMS. I followed the BFO usage format as a template.

I have replaced type with url. Could you please review it again? @matentzn