Quarantine?

So I donated to Shock: Human Contact a while ago, and I was wondering how the getting of the Quarantine playbook happens, because it seems to me some people have it already.  I am probably dense about how it works, because I tend to be in this sort of situation.

If you go to the kickstarter page, one of Joshua's updates gives information about how to download the playbook. 

Cool!  Toldja I was being dense. :)  Thank you.