Release automation: Improving automated changelogs, Release Codenames

[bennypowers]

• Naming 'prepare release' PRs after pokemon
• Can we program changesets to add spice to our release PRs and changelogs?

See Lit, wireit, and material-web-components for inspiration

[bennypowers]

@hellogreg @markcaron can you type up your shopping lists for this feature? What would ideal release notes look like, how much of it would you automate if you could? what would your producer's workflow look like if you could have your druthers?

[bennypowers]

changesets/changesets#1178