Broody hen now has chicks. Now what?
Congrats on your chick! In my experience (which is only 1 broody hatch!) the hen will continue to sit for a few days to allow any other eggs to hatch. Yes just make sure they have access to chick crumble and water (in a shallow dish with stones in it so the chicks can't drown). Double check that there aren't any wee gaps where a chick could get out or get stuck in. Good luck for the rest of your hatch!