zshrc: Add comments about the ls_ and grep_options we set
-rw-r--r-- 110 .gitignore
-rw-r--r-- 1132 README.md
drwxr-xr-x - debian
drwxr-xr-x - doc
drwxr-xr-x - etc
drwxr-xr-x - usr_share_grml