Added myself as traceback expert (python#694)

iritkatriel · web-flow · commit 05426d053643 · 2021-05-11T14:03:33.000+01:00
diff --git a/experts.rst b/experts.rst
@@ -236,7 +236,7 @@ tkinter               gpolo, serhiy.storchaka
 token
 tokenize              meador.inge
 trace                 belopolsky
-traceback
+traceback             iritkatriel
 tracemalloc           vstinner
 tty                   twouters*
 turtle                gregorlingl, willingc
