initial example

I added a second site section to demonstrate that we could do it.  If we ended up adding a bunch of them, we could make our own ``site_sections`` directory like we do in the Uber codebase and have the sections automatically exposed instead of having to add this one-liner of boilerplate to add the section to the website.  Or not.  You can see how we do that in ``uber/server.py`` in the main repo.