The Witness By: Thekla, inc. I don't usually give individual game sales their own posts these days, but a deal like this needs to be shouted from the rooftops. Jonathan Blow's The Witness debuted for $40 on PC, and cost only $9.99 when it made its way over to iOS. So that was already a great deal for a game that was one of my favorite games of 2017. But now it's…