Update nRF name in bluetooth.md

Update name to resolve issue #456

Author: Amanda Butler

docs/reference/api/connectivity/bluetooth/bluetooth.md

@@ -12,7 +12,7 @@ Arm Mbed BLE, also called `BLE_API`, is the Bluetooth Low Energy software soluti
 
 1. Install a BLE scanner on your phone. It allows you to track all BLE activities from your embedded application. This is a mandatory tool for BLE software development:
 
-    - [nRF Master Control Panel](https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp) for Android.
+    - [nRF Connect](https://play.google.com/store/apps/details?id=no.nordicsemi.android.mcp) for Android.
 
     - [LightBlue](https://itunes.apple.com/gb/app/lightblue-bluetooth-low-energy/id557428110?mt=8) for iPhone.