Update examples/operator templates and values

fixed typo

* Add an option for enable/disable webhook for a standard operator ge…

…nerated by kubebuilder.

* Use regular expressions to match the containerPort of the webhook.

Signed-off-by: Ye Cao <caoye.cao@alibaba-inc.com>

fix release job

Add preserve-ns in README.md

Add the -original-name flag description to README.md

update examples

fix image processing for repo with port

Handle images with digests

Previously, we were splitting image addresses at the _last_ instance of
a colon; this had unfortunate side-effects when said address included a
digest.

This change causes us to look for the _first_ instance of a colon,
allowing both tag and digest to properly co-exist; we don't try to do
anything fancier than that.

feat: add deployment revisionHistoryLimit