add data plane update step (#1403)
add data plane update step (#1403)

* add data plane update step

* small typo

* fix spelling

* delete not needed space

* another typo

* more lint fix

* Do an editing pass.

istio/istio.io,geeknoid/istio.github.io,istio/istio.io,linsun/istio.github.io,linsun/istio.github.io,ZackButcher/istio.github.io,geeknoid/istio.github.io,ZackButcher/istio.github.io,linsun/istio.github.io,geeknoid/istio.github.io,istio/istio.io,ZackButcher/istio.github.io,istio/istio.io,geeknoid/istio.github.io,linsun/istio.github.io,istio/istio.io,linsun/istio.github.io,geeknoid/istio.github.io,istio/istio.io,istio/istio.io,ZackButcher/istio.github.io