Add docs on hiding sensitive data in loops (#63096)

docs/docsite/rst/user_guide/playbooks_loops.rst

@@ -317,6 +317,8 @@ When looping over complex data structures, the console output of your task can b
 
 The output of this task will display just the ``name`` field for each ``item`` instead of the entire contents of the multi-line ``{{ item }}`` variable.
 
+.. note:: This is for making console output more readable, not protecting sensitive data. If there is sensitive data in ``loop``, set ``no_log: yes`` on the task to prevent disclosure.
+
 Pausing within a loop
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 .. versionadded:: 2.2