Chronos: Add column name rules in doc (#4625)
Chronos: Add column name rules in doc (#4625)

* change rolling name rules

* add space
yangw1234/BigDL,yangw1234/BigDL,intel-analytics/BigDL,yangw1234/BigDL,intel-analytics/BigDL,intel-analytics/BigDL,intel-analytics/BigDL,yangw1234/BigDL