Update Bluetooth configuration docs

Author: nseidle

docs/configure_with_bluetooth.md

@@ -19,20 +19,35 @@ Compatibility Icons
 </div>
 
 <figure markdown>
-![Configuration menu open over Bluetooth](./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20Config%20Menu.png)
+
+![Configuration menu open over Bluetooth](<./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20Config%20Menu.png>)
 <figcaption markdown>
 Configuration menu via Bluetooth
 </figcaption>
 </figure>
 
 Bluetooth-based configuration provides a quick and easy way to navigate the serial menus as if you were connected over a USB cable. For regular users, this is often the preferred configuration method.
 
-The RTK device will be a discoverable Bluetooth device (both BT SPP and BLE are supported). For information about Bluetooth pairing, please see [Connecting Bluetooth](connecting_bluetooth.md).
+By default, the RTK device will broadcast over BLE and Bluetooth SPP simultaneously. Because BLE does not require pairing, it is what is recommended to connect to out of simplicity. For information about Bluetooth pairing, please see [Connecting Bluetooth](connecting_bluetooth.md).
+
+## Terminal Apps
+
+<figure markdown>
+
+![BLESerial nRF for iOS](<./img/Bluetooth/SparkFun RTK BLE Config on iOS.png>)
+<figcaption markdown>
+
+[BLESerial nRF](https://apps.apple.com/us/app/bleserial-nrf/id1632235163) for iOS and [Bluetooth Serial Terminal](https://play.google.com/store/apps/details?id=de.kai_morich.serial_bluetooth_terminal&hl=en_US) for Android
+</figcaption>
+</figure>
+
+For configuration of an RTK device over Bluetooth we recommend [Bluetooth Serial Terminal](https://play.google.com/store/apps/details?id=de.kai_morich.serial_bluetooth_terminal&hl=en_US) for Android (free as of writing) and [BLESerial nRF](https://apps.apple.com/us/app/bleserial-nrf/id1632235163) for iOS (free as of writing). BLESerial nRF can only be used over BLE.
 
 ## Entering Bluetooth Echo Mode
 
 <figure markdown>
-![Entering the BEM escape characters](./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20EscapeCharacters.png)
+
+![Entering the BEM escape characters](<./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20EscapeCharacters.png>)
 <figcaption markdown>
 Send the `+++` characters to enter Bluetooth Echo Mode
 </figcaption>
@@ -44,7 +59,8 @@ Once connected, the RTK device will report a large amount of NMEA data over the
 	There must be a 2 second gap between any serial sent from a phone to the RTK device, and any escape characters. In almost all cases this is not a problem. Just be sure it's been 2 seconds since an NTRIP source has been turned off and attempting to enter Bluetooth Echo Mode.
 
 <figure markdown>
-![The GNSS message menu over BEM](./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20Config%20Menu.png)
+
+![The GNSS message menu over BEM](<./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20Config%20Menu.png>)
 <figcaption markdown>
 The GNSS Messages menu shown over Bluetooth Echo Mode
 </figcaption>
@@ -55,7 +71,8 @@ Once in Bluetooth Echo Mode, any character sent from the RTK unit will be shown
 For more information about the Serial Config menu please see [Configure with Serial](configure_with_serial.md).
 
 <figure markdown>
-![System output over Bluetooth](./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20System%20Output.png)
+
+![System output over Bluetooth](<./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20System%20Output.png>)
 <figcaption markdown>
 Exit from the Serial Config Menu
 </figcaption>
@@ -68,7 +85,8 @@ Bluetooth can also be used to view system status and output. Simply exit the con
 To exit Bluetooth Echo Mode simply disconnect Bluetooth. In the Bluetooth Serial Terminal app, this is done by pressing the 'two plugs' icon in the upper right corner.
 
 <figure markdown>
-![Exiting Bluetooth Echo Mode](./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20Exit%20BEM.png)
+
+![Exiting Bluetooth Echo Mode](<./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20Exit%20BEM.png>)
 <figcaption markdown>
 Menu option 'b' for exiting Bluetooth Echo Mode
 </figcaption>
@@ -81,7 +99,8 @@ Alternatively, if you wish to stay connected over Bluetooth but need to exit Blu
 Here we provide some settings recommendations to make the terminal navigation of the RTK device a bit easier.
 
 <figure markdown>
-![Disable Time stamps](./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20Settings%20Terminal.png)
+
+![Disable Time stamps](<./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20Settings%20Terminal.png>)
 <figcaption markdown>
 Terminal Settings with Timestamps disabled
 </figcaption>
@@ -90,7 +109,8 @@ Terminal Settings with Timestamps disabled
 Disable timestamps to make the window a bit wider, allowing the display of longer menu items without wrapping.
 
 <figure markdown>
-![Clear on send](./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20Settings.png)
+
+![Clear on send](<./img/Bluetooth/SparkFun%20RTK%20BEM%20-%20Settings.png>)
 <figcaption markdown>
 Clear on send and echo off
 </figcaption>

docs/img/Bluetooth/SparkFun RTK BLE Config on iOS.png

@@ -77,15 +77,19 @@ Most applications do not need to plug anything into the **DATA** port. Most user
 
 <figure markdown>
 
-![RADIO and DATA ports on the RTK Postacrd](<./img/Postcard/SparkFun RTK PostCard Ports.png>)
+![RADIO and DATA ports on the RTK Postcard](<./img/Postcard/SparkFun RTK PostCard Ports.png>)
 <figcaption markdown>
-RADIO and DATA ports on the RTK Postacrd
+RADIO and DATA ports on the RTK Postcard
 </figcaption>
 </figure>
 
+<figure markdown>
 
-
-![alt text](<img/Postcard/SparkFun RTK PostCard USB Channels.png>)
+![Dual serial ports show in Device Manager](<./img/Postcard/SparkFun RTK PostCard USB Channels.png>)
+<figcaption markdown>
+Dual serial ports show in Device Manager
+</figcaption>
+</figure>
 
 The DATA port on the RTK Postcard is the USB C connector. This connection creates two serial ports. **SERIAL-A** is used for [Serial Configuration](configure_with_serial.md). **SERIAL-B** is connected to the DATA port of the LG290P to receive NMEA and other data directly. The DATA port is also used for [updating the firmware](firmware_update_lg290p.md) on the LG290P.