Update custom words (#22891)

biefy · somerset · web-flow · commit 303e3719d747 · 2023-03-03T15:15:12.000+08:00
Co-authored-by: Fuyuan Bie &lt;fuyuan.bie@gmail.com&gt;
diff --git a/custom-words.txt b/custom-words.txt
@@ -978,6 +978,7 @@ Informations
 Informix
 Ingestor
 ingressed
+ingressgateway
 INITIALIAZING
 inittime
 inlinecount
@@ -1031,6 +1032,7 @@ isIdentityCertExprired
 isnullable
 isordered
 issqlcompression
+istio
 istransitioning
 isusernameavailable
 ISVs
