Update release notes wrt #32

Author: cowtowncoder

release-notes/CREDITS-2.x

@@ -47,5 +47,5 @@ Matt Nelson (mattnelson@github)
 
 PJ Fanning (@pjfanning)
 
-* Contributed #31: Fix issue with `BigInteger` handling
+* Contributed #31/#32: Fix issue with `BigInteger` handling
  (2.15.0)

release-notes/VERSION-2.x

@@ -10,7 +10,7 @@ Modules:
 === Releases ===
 ------------------------------------------------------------------------
 
-#31: Fix issue with `BigInteger` handling
+#31/#32: (jsonp/jsr-353) Fix issue with `BigInteger` handling
  (contributed by @pjfanning)
 
 2.15.0-rc2 (28-Mar-2023)