forgot to set intro comment

Signed-off-by: Mattias Andrée <maandree@operamail.com>
network demo

Signed-off-by: Mattias Andrée <maandree@operamail.com>
uname demo

Signed-off-by: Mattias Andrée <maandree@operamail.com>
uptime demo

Signed-off-by: Mattias Andrée <maandree@operamail.com>
fix xdisplay bug for the case where DISPLAY is not set + xdisplay demo

Signed-off-by: Mattias Andrée <maandree@operamail.com>