Updates

README.md

@@ -5,7 +5,7 @@
 First, set up the camera, the RAM split and expand the disk with the rpi-config command:
 
 ```bash
-$ ~/: sudo raspi-config
+pi@raspberrypi:~ $ sudo raspi-config
 ```
 
 First set up camera with option 5:
@@ -24,3 +24,18 @@ Then return to option 7 again and choose A3 memory split:
 ![raspi-config-mainscreen](images/raspi-config-advanced-memory.png)
 
 Set this to 256 and then exit raspi-config. When prompted to restart, select yes - this is to ensure the disk is resized before we updated.
+
+# Update the system
+
+First install screen, so that you don't have to worry about a disconnect mid update:
+
+```bash
+pi@raspberrypi:~ $ sudo apt update && sudo apt install screen -y
+```
+
+Then start screen and update:
+```bash
+pi@raspberrypi:~ $ screen
+pi@raspberrypi:~ $ sudo apt upgrade -y
+```
+Then, once it's finished, another reboot.