Fix Hugo van Kemenade name in release announcement

Co-Authored-By: Hugo van Kemenade <[email protected]>

Author: nicoddemus

doc/en/announce/release-5.3.3.rst

@@ -17,7 +17,7 @@ Thanks to all who contributed to this release, among them:
 * Bruno Oliveira
 * Chris NeJame
 * Daniel Hahler
-* Hugo
+* Hugo van Kemenade
 * Marcelo Duarte Trevisani
 * PaulC
 * Ran Benita