Organization Chart Help - firdows/yii2-orgchart

Hi. Still a bit of a rookie, sorry, and thank you for kind consideration.

I am looking to implement an org chart, and saw an extension(?) named firdows/yii2-orgchart. The demo is pretty cool.

I was able to use composer to install it, but I need some direction now on how to actually implement it. Thank you for any help.

Mike K.