Add docs for debugger for keyword dumper (#41421)

docs/docsite/keyword_desc.yml

@@ -22,6 +22,7 @@ connection: |
 
     .. seealso:: :ref:`using_connection`
 
+debugger: Enable debugging tasks based on state of the task result. See :ref:`playbook_debugger`
 delay: Number of seconds to delay between retries. This setting is only used in combination with :term:`until`.
 delegate_facts: Boolean that allows you to apply facts to a delegated host instead of inventory_hostname.
 delegate_to: Host to execute task instead of the target (inventory_hostname). Connection vars from the delegated host will also be used for the task.

docs/docsite/rst/user_guide/playbooks_debugger.rst

@@ -1,3 +1,5 @@
+.. _playbook_debugger:
+
 Playbook Debugger
 =================