Merged My Key To Steam, Unsure what I need to do next?

As the title suggests. I completed the merge form got the key but I don't know what to do now. Do I download the demo and upgrade from that? or what?

Any help is welcome.

 

EDIT: Disregard, I discovered it on my own, I'm a dope it was obvious.

For those who come here looking for an answer and aren't well versed in steam go to Games, activate product on steam.

 

Have a look in the community hub for rFactor 2, plenty of cool addons in the workshop