Minor documentation fixes on library/enum (GH-15234)

* Minor documentation fixes on library/enum
diff --git a/Misc/ACKS b/Misc/ACKS
index 52a5d70..3a79686 100644
--- a/Misc/ACKS
+++ b/Misc/ACKS
@@ -1771,6 +1771,7 @@
 Corran Webster
 Glyn Webster
 Phil Webster
+Antoine Wecxsteen
 Stefan Wehr
 Zack Weinberg
 Bob Weiner