Add page for seeking and giving better feedback

Created by: quinnkeast

We have a great open culture around seeking and giving feedback. But sometimes, the feedback cycles aren't as strong as they could be, because the environment isn't clearly structured. This sometimes leads to circular conversations, unclear decision ownership, and can make folks less likely to seek or give feedback.

I've created a simple starting point for how to seek and give better feedback, with the idea that it's a frameworkable skill we can all work at improving.