Create releases

[benweatherman]

It's helpful to create releases so people can use nice github tools to stay on top of the awesome changes

Research

• Our current tool lerna requires passing --conventional-commits, which also means we need to start using conventional commits when committing.

Acceptance Criteria

• When we publish a release to npm, also create a GitHub Release (can be a separate step, but should be straightforward to do around the same time)