This assignment was created by software that I use to record attendance. It's assigned "0" points so that it can still function as a placeholder, but those points are actually meaningless. So if you see that you have 0 out of 0 points, don't worry! 0 is still 100% of 0. It doesn't matter.
That said, your attendance does matter. My expectations, and the impact of your attendance on your grade is part of your Participation.
Can't change a rubric once you've started using it.