You can either use the
master branch with embedded Shiny apps. Then you have to
use a Shiny server to view the presentation, e.g. in RStudio, run
or simly click on the "Run Presentation" button.
Or you can use the
static branch, where the HTML file can be viewed with any
browser. The Shiny apps have been replaced with animated GIF images that give
an idea of the interactivity.