message: Add box group to docsify
diff: @@ -44,3 +44,21 @@ The fitted prop sets the padding of the box to 0.
  <span>Fitted box</span>
  </Box>
  ```
  +
  +# Box Group
  +
  +Box Group component is a wrapper component for multiple box components.
  +
  +```html
  +<BoxGroup>
  + <Box>
  + <span>Box</span>
  + </Box>
  + <Box>
  + <span>Box</span>
  + </Box>
  + <Box>
  + <span>Box</span>
  + </Box>
  +</BoxGroup>
  +```
  