message: chors(docs): update DASHBOARD_RBAC
diff: @@ -25,7 +25,6 @@ These features are considered **unfinished** and should only be used on developm
  - CLIENT_CACHE
  - DASHBOARD_CACHE
  - DASHBOARD_NATIVE_FILTERS_SET
  -- DASHBOARD_RBAC
  - DISABLE_DATASET_SOURCE_EDIT
  - ENABLE_EXPLORE_JSON_CSRF_PROTECTION
  - KV_STORE
  @@ -49,6 +48,7 @@ These features are **finished** but currently being tested. They are usable, but
  These features flags are **safe for production** and have been tested.
  - DASHBOARD_CROSS_FILTERS
  +- DASHBOARD_RBAC [(docs)](https://superset.apache.org/docs/creating-charts-dashboards/first-dashboard#manage-access-to-dashboards)
  - ESCAPE_MARKDOWN_HTML
  - ENABLE_TEMPLATE_PROCESSING
  - LISTVIEWS_DEFAULT_CARD_VIEW
  