Update navigation.yml

Author: PowershellScripts

_data/navigation.yml

@@ -70,6 +70,8 @@
       link: /articles/en/Viva/Closeconversation/
     - name: Manage Viva Engage with Graph API
       link: /articles/en/Viva/vivagraphapi/
+    - name: Leaders vs corporate communicators
+      link: /articles/en/Viva/leadervscommunicator/
 
 - name: Server
   link: /#