I am summarising the suggestions given to me on IRC earlier regarding finding peer reviewers for pull requests.
I am also doing some general wording tweaks while at it.
I am somewhat concerned this is too wordy and maybe shouldn't be in CONTRIBUTING.md but in a separate file (FINDINGPEERREVIEWERS.md doesn't really float my boat). Feedback welcome. This was one of the biggest frustrations I had when I started out, and I think it's worth some space somewhere.