Update to fin de sickleburg

I'm trying to make my IF as accessible as possible. I've changed fin de sickleburg so that hopefully it works on more browsers than it used to. If you have any problems with the format or the styling, please let me know. I'm experimenting to come up with a standard format for all my games that is simple, non ugly, and beginner friendly. (I've also added a download of the game file itself, if you happen to want that.)