Isn't README.md the default view? If so, I'd assume you can include as much info about that project as you like in there.
E.g., look at https://github.com/camlistore/go4. Unless your monitor height is 1600 px and you're using 90% browser zoom, you might not even see the README until you scroll down.
You can also link to #readme, which is a generic tag at the very top of the README and is guaranteed to exist in every github repo. E.g.: