@Paige Hawthorne
SOL put the addendum in a shaded box, which I hadn't anticipated, but don't mind.
That's an SOL code "{ caution }{ /caution }" without the spaces.
I mistakenly did that, posting the sequel's first chapter, but because I labeled it with a section break "{ p }Preview", but few readers ever check the story index, they read it thinking it was a continuation of the story, and it caused me no end of grief, so I quickly deleted it and never tried that again.
It's fine in books, where you (or your publisher) controls the formatting, but on SOL, it can be problematic. Though, honestly, my main failure was using the actual chapter title, rather than "Preview of the Sequel" as the chapter title. :(