I'll have to see if I can find the info. I'll be back.
Here's the buttons. Save one to your computer if you want to do it this way.
We've just moved to a new server so the old info isn't valid for linking that I found. What you do though is put the pic in your signature then click it so it's selected. Then paste the link you want (Your Ravelry projects). Click the paperclip to paste the link. At least I think that is how it works. Try that.