Compile and publish devnotes

[noisysocks]

This issue is for researching this item in the spreadsheet:

Compile and Publish Devnotes

[desrosj]

I have an in-progress core handbook page about writing dev notes. I'll follow up here when it's published!

[francescamarano]

This is very time-consuming. I would like to proceed like this:

1. @desrosj to write a handbook page with best practices
2. @audrasjb to quantify how long it took him to hunt them down and write them (also ask Jorge for assistance)
3. @marybaum to quantify how long it took to review them all

Thanks!