docs: update readme.md

Author: danielbarion

README.md

@@ -9,18 +9,15 @@
 [download-image]: https://img.shields.io/npm/dm/react-tooltip.svg?style=flat-square
 [download-url]: https://npmjs.org/package/react-tooltip
 
-## Demo
-
-<div style="display: flex; justify-content: space-between; width: 100%;>
-
-[![Edit ReactTooltip](https://codesandbox.io/static/img/play-codesandbox.svg)](https://codesandbox.io/s/still-monad-yfi4fn?fontsize=14&hidenavigation=1&theme=dark)
 <p>
   <a href="https://www.digitalocean.com/?refcode=0813b3be1161&utm_campaign=Referral_Invite&utm_medium=Referral_Program&utm_source=badge">
     <img src="https://opensource.nyc3.cdn.digitaloceanspaces.com/attribution/assets/PoweredByDO/DO_Powered_by_Badge_blue.svg" width="201px">
   </a>
 </p>
-</div>
 
+## Demo
+
+[![Edit ReactTooltip](https://codesandbox.io/static/img/play-codesandbox.svg)](https://codesandbox.io/s/still-monad-yfi4fn?fontsize=14&hidenavigation=1&theme=dark)
 
 Documentation for V4 - [Github Page](https://reacttooltip.github.io/react-tooltip/).