cufp.css: commit newly compiled version

Unclear why charset got added.
add Joe Armstrong image

Was commented out in 28154011f897b0c82b25acf5a7e4a9376d4f1b23, but
image made available in
cufp/cufp.org-media@13348b27288fc1c1f940ab1492d71bce0f6e47f9.