Host React guide on our website

Now that our [React guide](https://github.com/coderplex/learn/blob/master/web-dev/Frontend/Libraries%20%26%20Frameworks/Learn-React.md) is almost ready with the concepts, recommendations and tasks, we need to host it on our website. 
We will however need to [make these additions](https://github.com/coderplex/learn/issues/29) to finish the first complete version of the guide