README update

Author: teddokano

README.md

@@ -17,3 +17,14 @@ An example code is available using test_LM75B class which is included in this li
 It performs 
 1. Scan of I²C bus. Result is shown as a table (executed by `I2C_device::scan()`)
 1. temperature reading from LM75B and its compatible device and showing result in every second. 
+
+# References
+
+## Related libraries
+Library|Feature|Target devices|Required library
+---|---|---|---
+[GPIO_NXP_Arduino](https://github.com/teddokano/GPIO_NXP_Arduino)				|LED driver libraries				|PCAL6408A, PCAL6416A, PCAL6524, PCAL6534	|[I2C_device_Arduino](https://github.com/teddokano/I2C_device_Arduino)
+[LEDDriver_NXP_Arduino](https://github.com/teddokano/LEDDriver_NXP_Arduino)		|LED driver libraries				|PCA9955B, PCA9956B, PCA9957	|[I2C_device_Arduino](https://github.com/teddokano/I2C_device_Arduino)
+[RTC_NXP_Arduino](https://github.com/teddokano/RTC_NXP_Arduino)					|RTC driver libraries				|PCF2131, PCF85063A				|[I2C_device_Arduino](https://github.com/teddokano/I2C_device_Arduino)
+[TempSensor_NXP_Arduino](https://github.com/teddokano/TempSensor_NXP_Arduino)	|Temperature sensor libraries		|LM75B, PCT2075, P3T1085		|[I2C_device_Arduino](https://github.com/teddokano/I2C_device_Arduino)
+[I2C_device_Arduino](https://github.com/teddokano/I2C_device_Arduino)			|Base library for I²C operations	|none (can be applied as base class for all I²C targets)|---