Updated Custom Build Configuration (markdown)

Custom-Build-Configuration.md

@@ -1,9 +1,12 @@
 # Custom Build Configuration
 
-RadioLib supports many different Arduino cores, but sometimes it may be beneficial to define your own "platform". This can be achieved by frist defining the macro `RADIOLIB_CUSTOM_PLATFORM` and then defining all the required platform specification parameters. All the definitions **MUST** be placed in the Arduino sketch prior to including the main library file RadioLib.h, as is shown in the following example.
+RadioLib supports many different Arduino cores, but sometimes it may be beneficial to define your own "platform". This can be achieved by in the [BuildOpt file](https://github.com/jgromes/RadioLib/blob/4ad5261a8333eabb7af332fc60df5e007bf22647/src/BuildOpt.h#L32-L52). First, the macro `RADIOLIB_CUSTOM_PLATFORM`must be defined.
+
+Then, custom configuration can be changed in the section below that macro. Custom platform definition will override automatic platform detection.
 
 ```c++
-#define RADIOLIB_CUSTOM_PLATFORM
+// name for your platform
+#define RADIOLIB_PLATFORM                             "Custom"
 
 // the following parameters must always be defined
 #define RADIOLIB_PIN_TYPE                           uint8_t
@@ -15,11 +18,9 @@ RadioLib supports many different Arduino cores, but sometimes it may be benefici
 #define RADIOLIB_DEFAULT_SPI                        SPI
 
 // the following must be defined if the Arduino core does not support SoftwareSerial library
-#define RADIOLIB_SOFTWARE_SERIAL_UNSUPPORTED
-#define RADIOLIB_HARDWARE_SERIAL_PORT               Serial1
+//#define RADIOLIB_SOFTWARE_SERIAL_UNSUPPORTED
+//#define RADIOLIB_HARDWARE_SERIAL_PORT               Serial1
 
 // the following must be defined if the Arduino core does not support tone function
-#define RADIOLIB_TONE_UNSUPPORTED
-
-#include <RadioLib.h>
+//#define RADIOLIB_TONE_UNSUPPORTED
 ```