also pull before push to git
-rw-r--r-- 15 .gitignore
-rw-r--r-- 7048 COPYING
drwxr-xr-x - cases
drwxr-xr-x - furniture
-rw-r--r-- 19170 index.html
-rw-r--r-- 6380 index.org
drwxr-xr-x - misc
drwxr-xr-x - optics
drwxr-xr-x - repository handling tools