Update content/hardware/08.kits/maker/plant-watering-kit/product.md

Added URL guide

Author: karlsoderby

content/hardware/08.kits/maker/plant-watering-kit/product.md

@@ -1,6 +1,7 @@
 ---
 title: Plant Watering Kit
 url_shop: https://store.arduino.cc/plant-watering-kit
+url_guide: /tutorials/plant-watering-kit/iot-smart-garden-setup-with-nanorp2040
 ---
 
 Decorating your home with plants is an easy way to bring some life into your day-to-day. The only problem is - those plants need water to survive, and if you forget to pay attention to them for a while you may need to start over. So instead of staying ever vigilant, why not spend an afternoon creating a setup that will let you both monitor the amount of moisture in your plants soil, and water your plants from afar using the [Arduino IoT Cloud](https://docs.arduino.cc/cloud/iot-cloud)?