message: Add codesandbox for select component
diff: @@ -13,6 +13,8 @@ const items = [
  <Select items={items}/>
  ```
  +<iframe src="https://codesandbox.io/embed/gifted-sun-5f0gr?fontsize=14" title="gifted-sun-5f0gr" allow="geolocation; microphone; camera; midi; vr; accelerometer; gyroscope; payment; ambient-light-sensor; encrypted-media" style="width:100%; height:300px; border:0; border-radius: 4px; overflow:hidden;" sandbox="allow-modals allow-forms allow-popups allow-scripts allow-same-origin"></iframe>
  +
  ## Items
  Select component has one required property which is items. Items takes an array of JSON objects which keys of each object must be:
  - name: string
  