Using your admin dashboard you can upload just about anything you think will be useful to your players, sponsors or volunteers. Once uploaded they will appear under the section FILE DOWNLOADS when someone selects the menu icon on your tournament website (the 3 horizontal lines).
To get these downloadable files added to your tournament site, simply select Event Website -> Website Editor -> Downloadable Files from the side navigation. Then it's just a matter of giving your file a name (this is what will be shown on your website and then choosing the file you want to add before selecting the 'UPLOAD FILE' button.