DOCS-8141 connectionStatus lacks a usage box

Author: ksuarz

source/reference/command/connectionStatus.txt

@@ -20,6 +20,10 @@ Definition
    Returns information about the current connection, specifically the
    state of authenticated users and their available permissions.
 
+   .. code-block:: javascript
+
+      db.runCommand( { connectionStatus: 1 } )
+
 Output
 ------