Fixed broken image link.
-rw-r--r-- 6 .gitignore
-rw-r--r-- 7048 COPYING
drwxr-xr-x - RF
drwxr-xr-x - audio
-rw-r--r-- 12573 index.html
-rw-r--r-- 4287 index.org
drwxr-xr-x - misc
drwxr-xr-x - optics
drwxr-xr-x - organizers
drwxr-xr-x - repository handling tools