Suggestion for addition

Hey! It's awesome to see there is an online version of cards against humanity.
I was wondering how I add my own cards to the game. Where is the part of the code that takes that input?

And I have a suggestion: when you set up a new game, how about, in addition to the preexisting decks you pick, you can also upload a file with your own cards? (In whatever format it needs to be JSON or whatever).