Pyramid support

[domenkozar]

I've created https://github.com/niteoweb/pyramid_openapi3, where could we put that for people to notice, in the README?

Would you mind if the wrappers you've made are integrated here? I'm working on Django support myself.

[domenkozar]

I don't mind, but I see no compeling reason to do so - frameworks usually move at different paces, so maintaining all integrations at one place requires overhead.

[p1c2u]

@domenkozar imho it should be in README (Related projects section).