How to use orion.links.add in orionjs

I’m looking for an example of how to use orion.links.add. I’m trying to add some items to the left menu in my orionjs admin interface because I want to render a custom page at that link for the admin

I’ve check the orionjs tutorials as well as the examples here https://github.com/orionjs/examples but couldn’t find it. Not sure if I missed it or am looking at the wrong place.