code: func getContributions(authors []author) {
  	buf := new(bytes.Buffer)
  	cmd := exec.Command("git", "log", "--pretty=format:%ae")
  	cmd.Stdout = buf
  	err := cmd.Run()
  	if err != nil {
  		log.Fatal(err)
  	}
  
  next:
  	for _, line := range strings.Split(buf.String(), "\n") {
  		for i := range authors {
  			for _, email := range authors[i].emails {
  				if email == line {
  					authors[i].commits++
  					continue next
  				}
  			}
  		}
  	}
  
  	for i := range authors {
  		authors[i].log10commits = int(math.Log10(float64(authors[i].commits + 1)))
  	}
  }
docs: // Add number of commits per author to the author list.