Mention the hidden property

Author: javiereguiluz

console/hide_commands.rst

@@ -33,4 +33,5 @@ in command listings, so end-users are not aware of their existence.
 
 .. note::
 
-    Hidden commands are still available using JSON or XML descriptors.
+    Hidden commands are still available when using the JSON or XML descriptors.
+    In those cases, the command description includes a ``hidden`` boolean property.