Your story page is ultimately YOUR page to create a place where all other parts of your story can be accessed. Your main story page can follow any format but this is a guideline as to how exactly you should format it:
Give the readers general information about your story and make sure not to spoil too much here.
You should include chapters as links here, example:
Chapter 1: My Story Begins
Chapter 2: My Story Continues
Chapter 3: My Story Ends
You can link your readers to a character page or list your characters right here.
Above all, enjoy writing and maybe you'll be selected to win some competitions and have your story featured on the main page! Just the publicity you need!