Insteon-panel from Github

Has anyone installed the Tom Harris front end panel for Insteon? I currently have my Insteon devices on a schedule but would like to use the front end panel he created. I downloaded the zip file from Github but don’t know how to install it since I’m a newbie to the HA system. I don’t see any instructions in the readme.
Thanks in advance,

I believe it was merged into core a release or two ago and now installed when the integration is set up.