Update training docs

Author: nseidle

docs/quick_start.md

@@ -21,6 +21,6 @@ The default settings are as follows:
 
 Serial can be passed into the unit either through the USB port, or over the serial connector. If the serial connector is used, the baud rate is 57600bps by default.
 
-<sup>1</sup> The radios default to a published encryption key. For maximum security, we recommend changing the key using the training process.
+<sup>1</sup> The radios default to a published encryption key. For maximum security, we recommend changing the key using the [training process](http://docs.sparkfun.com/SparkFun_LoRaSerial/training/).
 
 LoRaSerial is designed to get small amounts of data from point A to point B as easily as possible. If you've got a sensor, or Arduino, or any device that can output serial, then it can transmit data over long distances. LoRaSerial has been used to send data over 9 miles (14km) line-of-sight.

docs/training.md

@@ -25,13 +25,13 @@ Press and hold the training button for 5 seconds. When the yellow LED flashes th
 
 This mode (Training as Server) is convenient when multiple clients need to be paired to a server. For example, when a device is configured to be a Server in Multipoint mode, putting it in *Training as Server* mode will allow a user to put another radio into *Training as Client*. The radios will communicate and the Server radio will configure the client radio. Any number of client radios can be quickly and conveniently configured this way.
 
-### Point-To-Point Training as Server
+## Simple Point-To-Point Training
 
-If a radio is set for P2P mode, entering training mode as a server will generate a new random NetID and AES key. This is helpful in the field if you need to put a pair of radios onto a different network and encryption key from other radios that may be nearby. Note: You can also return a radio to factory defaults using the **ATF** command.
+If a radio is set for P2P mode, entering training mode as a server will generate a new random NetID and AES key. In other words, holding the Train button for 5 seconds on one radio will cause that radio to generate new, unique/secure P2P settings. On the other radio, hold the Train button for 2 seconds. This is helpful in the field if you need to put a pair of radios onto a different network and encryption key from other radios that may be nearby. 
 
 ## Factory Reset
 
-Press and hold the training button for 15 seconds to enter Factory Reset mode. You know you've held the Training button long enough when the blue LED flashes 3 times. Releasing the button will then return LoRaSerial to factory settings and erase NVM.
+Press and hold the training button for 15 seconds to enter Factory Reset mode. You know you've held the Training button long enough when the blue LED flashes 3 times. Releasing the button will then return LoRaSerial to factory settings and erase NVM. Note: You can also return a radio to factory defaults using the **ATF** command.
 
 ## Temporary Training Server