Step 3: either 1. Paste the lines of code that you copied from GitHub, or 2. In GitHub, go to “Raw”, then copy the URL. In Hubitat, click on: “Import” and paste the URL in the pop-up.
You will essentially follow the same steps (1-4) to add new drivers, then select them manually from the device screen or if you added them before adding the device, they will likely be selected automatically.
Recommendation: Start by installing Hubitat Package Manager (HPM) which will do most of this work for you for the other Apps and Drivers that have been setup to use it:
And Bundle Manager to easily install apps that were created by @bptworld: