repointing tutorial to updated repo

The repo for this tutorial appears to have gone stale. I updated the broken dependency and integrated the tutorial into the overall azure samples for node repo (https://github.com/Azure-Samples/azure-iot-samples-node/tree/master/iot-hub/Tutorials). Updating the repo and installation instructions here.

Author: elhorton

articles/iot-hub/iot-hub-raspberry-pi-kit-node-get-started.md

@@ -197,13 +197,13 @@ Turn on Pi by using the micro USB cable and the power supply. Use the Ethernet c
 3. Clone the sample application.
 
    ```bash
-   git clone https://github.com/Azure-Samples/iot-hub-node-raspberrypi-client-app
+   git clone https://github.com/Azure-Samples/azure-iot-samples-node.git
    ```
 
 4. Install all packages for the sample. The installation includes Azure IoT device SDK, BME280 Sensor library, and Wiring Pi library.
 
    ```bash
-   cd iot-hub-node-raspberrypi-client-app
+   cd azure-iot-samples-node/iot-hub/Tutorials/RaspberryPiApp
    npm install
    ```