formatGitLog = parsedGitLog => {
  return Object.entries(parsedGitLog)
    .reduce((filtered, [type, log]) => {
      if (log.length) {
        filtered.push(`### ${capitalize(type)}\n\n${log.join('\n')}`)
      }
      return filtered
    }, [])
    .join('\n\n')
}
Format an array of parsed git logs
@param  {Array} parsedGitLog
@return {String} formattedGitLogs