sorted out markdown and code blocks

README.md

@@ -12,15 +12,15 @@ If you're using Recalbox, you may see a pop up that states a new USB device name
 
 If you don't have any other external USB devices plugged in, you should be able to access the bootloader at:
 
-/recalbox/share/externals/usb0
+    /recalbox/share/externals/usb0
 
 If you have more than one device plugged in, check the USB folders for two files in here - one called INDEX.HTM and one called INFO_UF2.TXT
 
 The contents of INFO_UF2.TXT should be something like:
 
-UF2 Bootloader v3.0
-Model: Raspberry Pi RP2
-Board-ID: RPI-RP2
+    UF2 Bootloader v3.0
+    Model: Raspberry Pi RP2
+    Board-ID: RPI-RP2
 
 Using scp or windows explorer, you should be able to drag/drop the uf2 file from this repo there.  The audio board will apply the update and then restart itself.
 
@@ -30,8 +30,8 @@ https://github.com/pimoroni/picade-max-audio/releases
 
 If you want to double check, ssh to the picade and run
 
-mount
+    mount
 
 You're looking for an entry like this one - if you have a USB drive or other devices are in bootloader mode you might see more than one listed here.
 
-/dev/sda1 on /recalbox/share/externals/usb0 type vfat (rw,sync,nodev,noexec,noatime,nodiratime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro)
+    /dev/sda1 on /recalbox/share/externals/usb0 type vfat (rw,sync,nodev,noexec,noatime,nodiratime,fmask=0022,dmask=0022,codepage=437,iocharset=ascii,shortname=mixed,errors=remount-ro)