This is why I am so sad to see CodePlex going away. Something about Github seems to encourage this practice of terse project descriptions. Maybe it's the fact that the code view is the default view as opposed to the wiki being the default view.
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.: