message: fix(docs): make select custom icon example live
diff: @@ -72,7 +72,7 @@ select. Simply pass the `icon` prop.
  In case the custom icon size doesn't look right, you can pass the `iconSize`
  prop to change it.
  -```jsx live=true
  +```jsx
  <Select icon={<MdArrowDropDown />} placeholder="Woohoo! A new icon" />
  ```
  