Welcome to the challenges, Jennifer!
You're welcome to post whatever you like:-) Most people share a link to their published example. A good number of people will also share their source file to help other users learn more about the project.
If you only post your source file, I'll publish the project and include a link on our servers. I did that with your example:
http://elearning-examples.s3.amazonaws.com/Weekly-Challenge/102-LoveHateElearning/JenniferSader/story.htmlThe benefit to sharing your published file is that everyone will be able to view your example. Some users view the challenges on mobile devices while others may not have Storyline or even Articulate software so there's no way for them to open the projects.
But share whatever you like and we'll take care of the rest:-)