fix: WAFMC-13098 Update PLM Installation Section (#1099)

* Update PLM Installation Section

* fix: namespace

* fix: namespace values.yaml

* fix: namespace instructions

* fix: remove unneeded line

* fix: release name

* fix: missing pvc in values.yaml

* fix: missing values.yaml content

* fix: correct dockerfile

* fix: missing values.yaml sections

* fix: clarify verify output

* fix: clarifications

* fix: sudo

* fix: 5.9.0

* fix: typo

* fix: clarify cert and key files

* fix: test policy clarification

* fix: edit nginx.conf

* fix: clarify configuration

* fix: pv yaml indent

* fix: values.yaml

* fix: clarifications

* fix: missing set args

* fix: helm upgrade

* fix: after rebase

Author: zahava-brown