Panic message is written to RAM, not flash (#28)

Co-authored-by: Jan Niehusmann <[email protected]>

Author: JohnAZoidberg

README.md

@@ -173,12 +173,12 @@ Bus 003 Device 078: ID 32ac:0021 Framework Laptop 16 B1 Display
   bcdDevice            0.10
 ```
 
-## Panic
+## Rust Panic
 
-On panic the RP2040 resets itself into bootloader mode.
+When the Rust code panics, the RP2040 resets itself into bootloader mode.
 This means a new firmware can be written to overwrite the old one.
 
-Additionally the panic message is written to flash, which can be read as follows:
+Additionally the panic message is written to XIP RAM, which can be read with [picotool](https://github.com/raspberrypi/picotool):
 
 ```sh
 sudo picotool save -r 0x15000000 0x15004000 message.bin