How can I add my RSS feed to my listing?

I'm sorry, I'm not sure where to ask this. Now that my serial is listed, I want to make sure there's some kind of indication when I next update the story. I understand that is done by using my website RSS feed, but I can't change anything about my listing.

Update your submission information and resubmit.

Thanks - yup, that did it, and I just had to resubmit again because my profile here lists me as a "member" without showing what I'm writing!

I really gotta pay better attention to these things...