add l-systems n'at to the list of projects

I REALLY need to automate the building of this page so I don't have to
update the even/odd classes every time I add a new project description.
use nth-child rules for project page odd/even styles

I don't know why I didn't think to use these in the first place. I guess
I'd just never used them before and it didn't cross my mind.
fix typo in CSS3 animation description

it's CSS no CCS
update projects page with glitch ghost and vim-chip8