Build a Markdown Previewer[Berlin]

Tell us what’s happening:
why is my code not rendering?

here is a link to my pen…
Your code so far
https://codepen.io/levi4dculture/pen/gZEOjd
Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 6.1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3223.0 Safari/537.36.

Link to the challenge:

You didn’t include React in the project!

Here’s the link to include it

https://unpkg.com/react@16.7.0/umd/react.development.js

You have included ReactDOM twice though!, remove one of them

Edit:

You can use these two cdn links to include React and ReactDOM

https://unpkg.com/react@16.7.0/umd/react.development.js
https://unpkg.com/react-dom@16.7.0/umd/react-dom.development.js

thanks for the help, working now