Direct link for the demo

I discovered about this project just now and was looking for an example of how it looks.

Opening the repo I noticed on the branches that there is something hosted on GitHub Pages

I think it would be easier for newcomers to look at how the lib works if the GitHub Pages site was linked or in README or in the description to access it using just one click.

On the repo description when you set up that there is an option to add a homepage.

For agility sake there is the link: http://chenglou.github.io/react-treeview/