Update README.md

Author: jpconstantineau

README.md

@@ -1,4 +1,23 @@
 # Community_nRF52_Arduino
 Community Add-on to the Adafruit_nRF52_Arduino Board Support Package
 
-For Detailed Installation instructions, refer to the [wiki](https://github.com/jpconstantineau/Community_nRF52_Arduino/wiki/Installation-Instructions).
+For Detailed Installation instructions, refer to the [wiki](https://github.com/jpconstantineau/Community_nRF52_Arduino/wiki/Installation-Instructions).
+
+
+# Licenses
+The Community nRF52 Auduino board support package includes a number of libraries which are individually licensed:
+
+- Community nRF52 - Lesser General Public License v2.1
+- Adafruit_LittleFS - BSD 3-Clause
+- BlueFruit - MIT License
+- Adafruit_TinyUSB_Arduino - MIT License
+- BLEAdafruitService - MIT License
+- BLEHomeKit - BSD License
+- BlueFruit52 - MIT License
+- InternalFileSytem - MIT License
+- PDM - Lesser General Public License v2.1
+- RotaryEncoder - MIT License
+- SPI - Lesser General Public License v2.1
+- Servo - Lesser General Public License v2.1
+- SoftwareSerial - Lesser General Public License v2.1
+- Wire - Lesser General Public License v2.1