fixed typo (#42900)

docs/docsite/rst/porting_guides/porting_guide_2.6.rst

@@ -51,7 +51,7 @@ Noteworthy module changes
 
 * The ``upgrade`` module option for ``win_chocolatey`` has been removed; use ``state: latest`` instead.
 * The ``reboot`` module option for ``win_feature`` has been removed; use the ``win_reboot`` action plugin instead
-* The ``win_iis_webapppool`` module no longer accepts a string for the ``atributes`` module option; use the free form dictionary value instead
+* The ``win_iis_webapppool`` module no longer accepts a string for the ``attributes`` module option; use the free form dictionary value instead
 * The ``name`` module option for ``win_package`` has been removed; this is not used anywhere and should just be removed from your playbooks
 * The ``win_regedit`` module no longer automatically corrects the hive path ``HCCC`` to ``HKCC``; use ``HKCC`` because this is the correct hive path
 * The :ref:`file_module` now emits a deprecation warning when ``src`` is specified with a state