Add missing tag

Author: sebromero

content/hardware/04.pro/shields/portenta-cat-m1-nb-iot-gnss-shield/essentials.md

@@ -4,7 +4,10 @@
     </EssentialElement>
 </EssentialsColumn>
 
-<EssentialElement link="https://github.com/arduino-libraries/Arduino_Pro_Tutorials" title="Arduino Pro Tutorials" type="library">The complete Arduino sketches from the Pro tutorials.</EssentialElement>
+<EssentialsColumn title="Suggested Libraries">
+    <EssentialElement link="https://github.com/arduino-libraries/Arduino_Pro_Tutorials" title="Arduino Pro Tutorials" type="library">
+        The complete Arduino sketches from the Pro tutorials.
+    </EssentialElement>
 </EssentialsColumn>
 
 <EssentialsColumn title="Arduino Basics">