Update README

Update the README so that it reflects the fact that all GPIO headers are the same when it comes to connecting an NRF24.

Author: GertSanders

README

@@ -1,13 +1,5 @@
 Wiring the NRF24
 
-Checking your Hardware Version
-
-On the shell execute 'cat /proc/cpuinfo' at the bottom of the output you will find the
-field 'Revision'. Revision values of a01041, a21041 or 0010 inidicate Hardware Version
-B+ anything else V2.
-
-Pi Hardware Version V2
-
 GND	  25
 VCC	  17
 CE	  22
@@ -17,17 +9,6 @@ MOSI  19
 MISO  21
 IRQ	  --
 
-Pi Hardware Version B+
-
-GND	  25
-VCC	  17
-CE	  15
-CSN   24
-SCK   23
-MOSI  19
-MISO  21
-IRQ	  --
-
 Building Serial Gateway
 
 The standard configuration will build the Serial Gateway with a tty name of
@@ -48,6 +29,17 @@ Build the Gateway
 - sudo make install
 - (if you want to start daemon at boot) sudo make enable-gwserial
 
+For some controllers a more recognisable name needs to be used: e.g. /dev/ttyUSB020 (check if this is free).
+
+sudo ln -s /dev/ttyMySensorsGateway /dev/ttyUSB20
+
+To automatically create the link on startup, add
+ln -s /dev/ttyMySensorsGateway /dev/ttyUSB20
+just before
+exit0
+in /etc/rc.local
+
+
 Uninstalling 
 
 - change to Raspberry Dir