Provide example usage for trait profiles

[mertdotcc]

We have multiple routes that we are deploying to varying platforms with different configuration when it comes to Knative settings, prometheus labels, and a bunch of other stuff. I think utilizing trait profiles would help me with my use case a lot. However, I couldn't find any examples. Would appreciate if someone can provide a short sample or point me in the right direction. Thanks!

[squakez]

Thanks, moving this issue to examples repository.