message: revive Box example
diff: @@ -84,6 +84,10 @@ const Index = props => (
  ))}
  </table>
  </Example>
  + <Example name='Box'>
  + <Box m={2}>This is a box.</Box>
  + <Box p={2} m={2}>This is a box with padding.</Box>
  + </Example>
  <Example name='BranchName'>
  <BranchName>a_new_feature_branch</BranchName>
  <Detail>
  