A+C: add Damian Kaczmarek

This commit, part of a series, is inspired by pull request PR #168 by
Damian Kaczmarek (with AI assistance), with some modifications.

Updates PR #168

AUTHORS

diff --git a/AUTHORS b/AUTHORS
index e9ba7cd..cbb7120 100644
--- a/AUTHORS
+++ b/AUTHORS
@@ -11,6 +11,7 @@
 # Please keep the list sorted.
 
 Andrew Dassonville <dassonville.andrew@gmail.com>
+Damian Kaczmarek <rush@rushbase.net>
 Egor Pugin <egor.pugin@gmail.com>
 Google Inc.
 Jimmy Casey <casey.jimmy@gmail.com>

CONTRIBUTORS

diff --git a/CONTRIBUTORS b/CONTRIBUTORS
index d76afb3..ad47766 100644
--- a/CONTRIBUTORS
+++ b/CONTRIBUTORS
@@ -34,6 +34,7 @@
 
 Andrew Dassonville <dassonville.andrew@gmail.com>
 Chris Palmer <chris@noncombatant.org>
+Damian Kaczmarek <rush@rushbase.net>
 Egor Pugin <egor.pugin@gmail.com>
 Jimmy Casey <casey.jimmy@gmail.com>
 Leo Neat <lneat@google.com>