update

optional/luma_led_matrix.md

@@ -11,10 +11,11 @@ Save and reboot
 
 ```
 dietpi-software install 130
-sudo apt install build-essential libfreetype6-dev libjpeg-dev libopenjp2-7 libtiff5
+sudo apt install build-essential libfreetype6-dev libjpeg-dev libopenjp2-7 libtiff5 -y
 sudo pip3 install -U luma.led_matrix
 tar xvfJ luma.led_matrix-master.tar.xz
-cd luma.led_matrix-master/examples
+mv luma.led_matrix-master /mnt/dietpi_userdata/luma.led_matrix
+cd /mnt/dietpi_userdata/luma.led_matrix/examples
 python3 silly_clock.py 
 ```
 
@@ -30,6 +31,8 @@ sudo cp /tmp/rc.local /etc/
 sudo chmod +x /etc/rc.local
 sudo systemctl disable rc-local
 sudo systemctl disable rc.local
+fi
+
 if ! [ -f /lib/systemd/system/rc-local.service ]
 then
 cat <<'EOF'>> /tmp/rc-local.service
@@ -58,3 +61,4 @@ sudo cp /tmp/rc-local.service /lib/systemd/system/rc-local.service
 sudo systemctl daemon-reload
 fi
 ```
+