bpo-45896: Fix docs default asyncio event loop on Windows (GH-29857) (GH-29877)

(cherry picked from commit f27bef30438d2f07f19de91e021f34b77ccc4b20)

Co-authored-by: Rob <r4226@pm.me>
diff --git a/Doc/library/asyncio-eventloop.rst b/Doc/library/asyncio-eventloop.rst
index 44798dc..252fb42 100644
--- a/Doc/library/asyncio-eventloop.rst
+++ b/Doc/library/asyncio-eventloop.rst
@@ -1247,9 +1247,10 @@
 
 .. note::
 
-   The default asyncio event loop on **Windows** does not support
-   subprocesses. See :ref:`Subprocess Support on Windows
-   <asyncio-windows-subprocess>` for details.
+   On Windows, the default event loop :class:`ProactorEventLoop` supports
+   subprocesses, whereas :class:`SelectorEventLoop` does not. See
+   :ref:`Subprocess Support on Windows <asyncio-windows-subprocess>` for
+   details.
 
 .. coroutinemethod:: loop.subprocess_exec(protocol_factory, *args, \
                       stdin=subprocess.PIPE, stdout=subprocess.PIPE, \