bpo-35920: Windows 10 ARM32 platform support (GH-11774)

diff --git a/Doc/library/platform.rst b/Doc/library/platform.rst
index 60c6089..e07f9d6 100644
--- a/Doc/library/platform.rst
+++ b/Doc/library/platform.rst
@@ -216,6 +216,21 @@
       later (support for this was added in Python 2.6). It obviously
       only runs on Win32 compatible platforms.
 
+.. function:: win32_edition()
+
+   Returns a string representing the current Windows edition.  Possible
+   values include but are not limited to ``'Enterprise'``, ``'IoTUAP'``,
+   ``'ServerStandard'``, and ``'nanoserver'``.
+
+   .. versionadded:: 3.8
+
+.. function:: win32_is_iot()
+
+   Returns True if the windows edition returned by win32_edition is recognized
+   as an IoT edition.
+
+   .. versionadded:: 3.8
+
 
 Mac OS Platform
 ---------------