deck.split.js is a deckjs extension that helps you split long slide into
multiple small slides.
Installation
Just drop the whole repo into deck.js's extensions directory, then include
the script in your slide.
Usage
To split a long slide, you need to indicate position inside original slide by adding following line:
<div style="page-break-after:always"></div>
Indeed, it could be any tag set with page-break-after:always style. Every
time you add this line, a new slide with the same title will be created, so you
can split your slide into pieces as much as you want.