Update k8s user guide for run from remote (#3606)
Update k8s user guide for run from remote (#3606)

* update doc

* minor

* update

* fix

* minor

* minor

* fix
yangw1234/BigDL,intel-analytics/BigDL,yangw1234/BigDL,intel-analytics/BigDL,intel-analytics/BigDL,yangw1234/BigDL,intel-analytics/BigDL,yangw1234/BigDL