code: async function changesToRelease () {
    const lastCommitWasRelease = new RegExp(`^Bump v[0-9.]*(-beta[0-9.]*)?(-nightly[0-9.]*)?$`, 'g')
    const lastCommit = await GitProcess.exec(['log', '-n', '1', `--pretty=format:'%s'`], gitDir)
    return !lastCommitWasRelease.test(lastCommit.stdout)
  }
docs: function to determine if there have been commits to master since the last release