code: def update():
      
      repo_directory = get_config()['repo_directory']
      os.chdir(repo_directory)
      click.echo("Check for updates...")
  
      local = subprocess.check_output('git rev-parse master'.split()).strip()
      remote = subprocess.check_output(
          'git ls-remote https://github.com/tldr-pages/tldr/ HEAD'.split()
      ).split()[0]
      if local != remote:
          click.echo("Updating...")
          subprocess.check_call('git checkout master'.split())
          subprocess.check_call('git pull --rebase'.split())
          build_index()
          click.echo("Update to the latest and rebuild the index.")
      else:
          click.echo("No need for updates.")
docs: Update to the latest pages.