Go to the Github page and download the simpleslider.js file. Don't forget to download the touchswipe.js and transit.js if you're going for a complete (and still simple) slider.
Now you have the files you can include them in your header.

<script src="src/jquery-1.10.1.min.js"></script> <script src="src/jquery-migrate-1.2.1.min.js"></script> <script type="text/javascript" src="transit.js"></script> <script type="text/javascript" src="touchSwipe.js"></script> <script type="text/javascript" src="simpleSlider.js"></script>

Now it's time to bind the simpleslider on your HTML element. Check the Github README for an example HTML.

$(document).ready(function(){ $(".slider").simpleSlider(); });

SimpleSlider will now do the rest. Are you looking for more options? Check the Github readme!

SimpleSlider standard comes with a few methods, triggers and a tracker. These are all easy to configure. More information about them can be found on the Github page
Btw, this site has been made using simpleslider!