add general facts-to-info paragraph (#64293)

docs/docsite/rst/porting_guides/porting_guide_2.9.rst

@@ -63,6 +63,11 @@ Modules
 * The ``win_get_url`` and ``win_uri`` module now sends requests with a default ``User-Agent`` of ``ansible-httpget``. This can be changed by using the ``http_agent`` key.
 * The ``apt`` module now honors ``update_cache=false`` while installing its own dependency and skips the cache update. Explicitly setting ``update_cache=true`` or omitting the param ``update_cache`` will result in a cache update while installing its own dependency.
 
+Renaming from ``_facts`` to ``_info``
+--------------------------------------
+
+Ansible 2.9 renamed a lot of modules from ``<something>_facts`` to ``<something>_info``, because the modules do not return :ref:`Ansible facts <vars_and_facts>`. Ansible facts relate to a specific host. For example, the configuration of a network interface, the operating system on a unix server, and the list of packages installed on a Windows box are all Ansible facts. The renamed modules return values that are not unique to the host. For example, account information or region data for a cloud provider. Renaming these modules should provide more clarity about the types of return values each set of modules offers.
+
 Writing modules
 ---------------