Docs for Nelson on K8s

[adelbertc]

Now that initial K8s integration is merged 🔥 🔥 🔥 we should probably document the current state, what is/isn't supported, etc.

I'll try to find some time soon to do this, want to do this before I make noise on Twitter, etc. about it. What might be the best place to put this? The kubernetes-configuration repo? README? Site? It's very preliminary integration so I'm hesitant to put it somewhere as central as the site, but maybe README?

[timperrett]

Probally putting some mentions here would be useful: https://getnelson.github.io/nelson/#installation-configuration

but broadly yes, this is something that absolutely should be done :-)