The documentation assumes that you know React or are willing to learn React. If you are new to React you can go through the basic tutorial over here and a more thorough documentation here. Remember that React is very easy to learn and doesn't have the steep learning curve of AngularJS. You can even mix the two if you already know Angular as React only deals with the View and leaves the rest of the architecture to you to deal with.
We have also included Fluxxor, an implementation of Facebook's Flux architecture.
We'll update the docs with more extensive list of tutorials on React in future revisions. Stay tuned.