Find all the available documentation via the Github Repository.

When you purchase this add-on you will receive a .html file that when double clicked should open the download link for the most recent release.

In case this doesn't work for some reason... here's the download link.

It's a lot easier for developers to only push fixes and updates to one website than go through everywhere updating the same .zip file

I'm surprised Blender Market doesn't have a redirect download option already!