Extra ribbons for GitHub project sites

Original ones available here.

	<a href="http://github.com/you"><img style="position: absolute; top: 0; right: 0; border: 0;" src="http://lkundrak.github.com/github-ribbons/ribbon1.png" alt=""></a>
	<a href="http://github.com/you"><img style="position: absolute; top: 0; right: 0; border: 0;" src="http://lkundrak.github.com/github-ribbons/ribbon2.png" alt=""></a>
	<a href="http://github.com/you"><img style="position: absolute; top: 0; right: 0; border: 0;" src="http://lkundrak.github.com/github-ribbons/ribbon3.png" alt=""></a>