Update README.md

Author: sandeepmistry

README.md

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-# AzureIoT
-Azure IoT library for the Arduino
+# AzureIoT - Azure IoT library for Arduino
+
+This library is a port of the [Microsoft Azure IoT device SDK for C](https://github.com/Azure/azure-iot-sdks/blob/master/c/readme.md) to Arduino. It allows you to use your Arduino/Genuino with the [Azure IoT Hub](https://azure.microsoft.com/en-us/services/iot-hub/).
+
+For the Arduino/Genuino [MKR1000](https://www.arduino.cc/en/Main/ArduinoMKR1000) or [Zero](https://www.arduino.cc/en/Main/ArduinoBoardZero) and [WiFi Shield 101](https://www.arduino.cc/en/Main/ArduinoWiFiShield101) only.
+
+[![Microsoft Azure Certified][Microsoft-Azure-Certified-Badge]][azure-certifiedforiot]
+
+## Getting started
+
+See the [Microsoft Azure IoT device SDK for C - Arduino WiFi Shield 101 and MKR1000 Setup Guide](https://github.com/Azure/azure-iot-sdks/blob/master/c/doc/run_sample_on_arduino_wifi101.md).
+
+## License
+
+See [LICENSE](LICENSE) file.
+
+[azure-certifiedforiot]:  http://azure.com/certifiedforiot 
+[Microsoft-Azure-Certified-Badge]: images/Microsoft-Azure-Certified-150x150.png (Microsoft Azure Certified)