Add comments, update to new HamShield library standard.

examples/HandyTalkie/HandyTalkie.ino

@@ -1,4 +1,20 @@
-// Hamshield 
+/* Hamshield
+ * Example: HandyTalkie
+ * This is a simple example to demonstrate HamShield receive
+ * and transmit functionality.
+ * Connect the HamShield to your Arduino. Screw the antenna 
+ * into the HamShield RF jack. Plug a pair of headphones into 
+ * the HamShield. Connect the Arduino to wall power and then 
+ * to your computer via USB. After uploading this program to 
+ * your adruino, open the Serial Monitor. Press the button on 
+ * the HamShield to begin setup. After setup is complete, type 
+ * your desired Tx/Rx frequency, in hertz, into the bar at the 
+ * top of the Serial Monitor and click the "Send" button. 
+ * To test with another HandyTalkie (HT), key up on your HT 
+ * and make sure you can hear it through the headphones 
+ * attached to the HamShield. Key up on the HamShield by 
+ * holding the button.
+*/
 
 #include <HamShield.h>