Changed the example of how to pass the containingStruct to a behavior, to instead just pass self.
Changed the example of how to pass the containingStruct to a behavior, to instead just pass self.

This is nice because it doesn't require any extra stuff being passed in the ConnectContainingState signature in the main library.

Part of #741.

jkomoros/boardgame,jkomoros/boardgame,jkomoros/boardgame