Metrics - Add histograms/README.md
Add a README file in the metrics histograms directory indication best
practices for emitting and documenting histograms.
I borrowed a sentence or two here or there from header files where I thought the header files explained things well. I hope the original authors of those words don't mind this repurposing.
I decided not to talk about user actions here.
There is nothing here about how to analyze the histogram results. The
current scope for this document felt right without that. We may want
to consider adding that later, probably to another doc.
I did not yet check how this rendered in markdown. I thought I'd
send it for review now, as I likely won't be able to double-check the
markdown for some time (another day?).
BUG=
Review-Url: https://codereview.chromium.org/2381233002
Cr-Commit-Position: refs/heads/master@{#422536}
CrOS-Libchrome-Original-Commit: 2b5f7e00b10ebf583312626d2f269ab2edb839cf
1 file changed