minor documentation fix.

README.md

@@ -61,7 +61,7 @@ I've included more detailed steps below for the actual Linux distributions I am
 2.    Open the `rfm12b_config.h` file, read it carefully and edit the settings to your liking. Be especially sure to correctly choose the board you are building for.
 3.    Clone this repository and run `make`
 4.    Make sure that the RFM12B module is connect
-5.    Load the kernel driver for the SPI interface: `sudo modprobe spi-bcm27`
+5.    Load the kernel driver for the SPI interface: `sudo modprobe spi-bcm2708`
 6.    Load the RFM12B module: `sudo insmod rfm12b`.
 7.    Check the output of `dmesg` and look into `/dev` to make sure that the driver has been loaded successfully.