Update README.md

README.md

@@ -70,6 +70,7 @@ Support for the NRF52 is not in the stable release of OpenOCD as of V 0.10, but
 
 The `openocd.cfg` will also be different for the NRF52 than the linked tutorial.  Here is mine for flashing a binary of the Adafruit bootloader:
 ```
+source [find interface/raspberrypi-native.cfg]
 transport select swd
 source [find target/nrf52.cfg]
 bcm2835gpio_swd_nums 25 24