Consider this a free page, as not everyone likes to have an "about me" section on their site. Some writers like to give a little and let potentials know a little bit about them. It doesn't have to be some in-depth information, either.
If you're going to turn this into an "about me" page, here's what I would suggest adding: things like your name, a vague idea of where you're from (just to get an idea of time zone, don't get specific!), your age (or just that you're 18+), and anything else that you think is interesting about yourself.
I've seen people include their favorite TV shows/movies, some of their favorite writing partners and then link back to their site (get their permission, first!), what they went to school for, random hobbies, and even links to some really amazing art portfolios.
This page is, ultimately, about you. "I've been writing for X amount of years and I started on X writing X. I like to think I've grown a lot since then. My favorite genre to write is X and I think it was probably influenced from watching way too much of X when I was a kid..." You see where I'm going with this? Market yourself. That's the entire point of this site.