Update example_arduino_iot_cloud.md

- GitHub Pages and mkdocs isn't grabbing the image and linking it in the notes for some strange reason even though it is in the assets folder. The GitHub Action was re-run but it didn't work. Adding minor change to see if this fixes it.

Author: bboyho

docs/example_arduino_iot_cloud.md

@@ -111,6 +111,7 @@ This menu takes you to a list of existing API Keys. If you have not created one
 
 !!! note
     Users will need a service plan in order to take advantage of the API.
+    
     <div style="text-align: center">
       <a href="../assets/aiot_cloud_plan_limits.JPG"><img src="../assets/aiot_cloud_plan_limits.JPG" width="600" height="600" alt="Arduino IoT Cloud Upgrade Plan"></a>
     </div>