Screen shot 1 i leave blank, its up to you of you wanna sign your relay.

Screenshot 2 i think you just go to personal relay and paste your relay on "local relay" slot on primal or amethyst, others might have a slot for it aswell.

Online relays start with wss://.

Puting it on local relay means you get a saved copy to your citrine allowing for ofline viewing of your citrine saved notes