change box image directory to boxes/apuimages

reg

@@ -1,10 +1,10 @@
 echo -n "new hostname: "
 read hostname
 sudo hostname $hostname
-echo "address of leftmost socket eth0 (for control box):"
+echo "address of leftmost socket (eth0 for control box, recommended also for newer bare apus):"
 ifconfig | grep eth0
 echo " "
-echo "address of rightmost socket (for bare apu):"
+echo "address of rightmost socket (for legacy bare apu):"
 ifconfig | grep eth3
 echo " "
 echo "register $hostname to packet fence and connect LAN to corresponding socket"