fix README for boxtools

+ fix line in sethostname.sh

README.md

@@ -1,4 +1,4 @@
-# Linux Box installation tools
+# Installation tools for APUs and Raspberry Pi boxes
 
 The APU is a Linux box to be used as a control box at LIN sample environment
 
@@ -6,6 +6,9 @@ The APU is a Linux box to be used as a control box at LIN sample environment
 
 `to_system/`  contains the files to be installed in the system
 
+We have also the Raspberry based PLC Iono Pi Max
+and other Raspberry Pi based boxes.
+
 ## config files
 
 filename: cfg/(hostname)_(hexdigits).cfg

sethostname.sh

@@ -7,7 +7,7 @@ if [ -z "$FOUND" ]; then
 else
    FOUND=$(basename ${FOUND[0]})  # remove directory part
    HOSTNAME=${FOUND%%.*}  # remove extension
-   if [ $HOSTNAME != "apu$BOXID" ]; then
+   if [ $HOSTNAME != "box$BOXID" ]; then
        HOSTNAME=${HOSTNAME%_*}
    fi
    echo "hostname $HOSTNAME"