New entry in the FAQ: what to do when you're trying to make a giveaway but SG doesn't recognize it

Pretty much as title says. Due to a recent misleading giveaway made by a pretty new user (which I guess/hope didn't mean harm, just to make the giveaway), I checked in the FAQ if there was info about what to do in that case: you try to create a giveaway, but SG doesn't recognize the name of your game. I think it should be added to the FAQ, as the solution is pretty simple (ask support to add the game, maybe with a Steamdb.info link) but maybe not obvious to someone new to making giveaways, even if they did read the FAQ.