Add official documentation links.

Author: junkmd

Doc/library/ctypes.rst

@@ -1998,6 +1998,10 @@ Utility functions
 
    .. availability:: Windows
 
+   .. seealso::
+
+      `DllCanUnloadNow function official documentation <https://learn.microsoft.com/en-us/windows/win32/api/combaseapi/nf-combaseapi-dllcanunloadnow>`_
+
 
 .. function:: DllGetClassObject()
 
@@ -2007,6 +2011,10 @@ Utility functions
 
    .. availability:: Windows
 
+   .. seealso::
+
+      `DllGetClassObject function official documentation <https://learn.microsoft.com/en-us/windows/win32/api/combaseapi/nf-combaseapi-dllgetclassobject>`_
+
 
 .. function:: find_library(name)
    :module: ctypes.util