How do i add that i offer cat care services to my profile header?

"Don't board your pet,that's boring!" is your account's name. You would need to contact Rover Support to see if that can be changed.

You should also expand on your profile's description since it only now pertains to housesitting and not boarding in your own home. If you have pets of your own, especially cats, you need to state that as well in your profile.