How do you submit stories to this site?

How do you submit stories to this site/ Like the formatting and stuff? I've never done it before but I finally have a story completed and would like to submit it for my friends to see or anyone else who would like to see my weird stuff xD I finally finished one, and got it edited and stuff but I don't know how to do it and I don't want it to come out all janky ;-; So any help would be SUPER appreciated