docs: improve formatting

Co-authored-by: Zaiming (Stone) Shi <zmstone@gmail.com>

changes/ce/feat-10224.en.md

@@ -1,2 +1 @@
-Add the option to customize `clusterIP` in Helm chart, so that an user
-may set it to a fixed IP.
+Add the option to customize `clusterIP` in Helm chart, so that a user may set it to a fixed IP.