Refine release instructions (#8272)
Refine release instructions (#8272)

* Refine release instructions

* Add version to svn message

airbnb/superset,mistercrunch/panoramix,mistercrunch/panoramix,apache/incubator-superset,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,airbnb/superset,airbnb/superset,zhouyao1994/incubator-superset,airbnb/caravel,mistercrunch/panoramix,airbnb/caravel,mistercrunch/panoramix,airbnb/caravel,zhouyao1994/incubator-superset,apache/incubator-superset,apache/incubator-superset,apache/incubator-superset,zhouyao1994/incubator-superset,apache/incubator-superset,airbnb/caravel,airbnb/superset