bpo-37062: Enum: add extended AutoNumber example (GH-22349) (GH-22370)

(cherry picked from commit 62e40d8450b9c78346ec3617de7fe3f0ad381510)

Co-authored-by: Ethan Furman <ethan@stoneleaf.us>
diff --git a/Misc/ACKS b/Misc/ACKS
index 5e0953a..a16f15a 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1713,6 +1713,7 @@
 Lowe Thiderman
 Nicolas M. Thiéry
 James Thomas
+Reuben Thomas
 Robin Thomas
 Brian Thorne
 Christopher Thorne