Mostly you just type the text as you want it to appear. Spaces and returns are preserved so you should let your browser wrap the text of a paragraph as you edit.
Links to other pages are the most important decoration. These are made by including the title of the other page in double square brackets. So to reference the page titled Controls, you put [[Controls]] in the page and when displayed you will see Controls.
If a page is undefined you'll the a '?' link after the title that allows you (or anyone) to define that page.
Other decorations can be made in html or using some special notation detailed below: