update example config to include airlift information

Author: brentru

examples/adafruitio_00_publish/config.h

@@ -22,6 +22,9 @@
 //AdafruitIO_WiFi io(IO_USERNAME, IO_KEY, WIFI_SSID, WIFI_PASS);
 
 /******************************* AirLift **************************************/
+// the AdafruitIO_AirLift client will work with the following boards:
+//   - Adafruit AirLift Breakout -> https://www.adafruit.com/product/4201
+//   - Adafruit PyPortal -> https://www.adafruit.com/product/4116
 
 // https://github.com/brentru/Adafruit_IO_Arduino/tree/airlift-standalone
 // commit e638a25
@@ -31,6 +34,9 @@
 #include "AdafruitIO_AIRLIFT.h"
 AdafruitIO_AIRLIFT io(IO_USERNAME, IO_KEY, WIFI_SSID, WIFI_PASS);
 
+// Optionally configure the pins used for the AirLift connection
+// io.airliftPins(11, 10, 9);
+
 /******************************* FONA **************************************/
 
 // the AdafruitIO_FONA client will work with the following boards: