If you want to introduce yourself or just want the visitors to know something about you you can make your own userpage, here is a guide on how to do this also containing basic editing tips. You also can use this or this template. It is recommended to preview (alt+p) your page before you save it (alt+s). This will save you time and will simplify your editing. If you have a question please post it to one of the Admins or the Admin Talk Page.