Readme update to explain use of keepRevisionOf settings
Readme update to explain use of keepRevisionOf settings

Signed-off-by: Chris Duell <b1c1d8736f20db3fb6c1c66bb1455ed43909f0d8@chrisduell.com>

VentureCraft/revisionable,spira/revisionable,jfhernandeze/revisionable,anteriovieira/revisionable,gratif/revisionable,vladutcornel/revisionable,SpaceGazebo/RevisionableTraitL5,anggras/revisionable