Adding historical backfills feedback

Author: rchinn1

src/profiles/profiles-sync/index.md

@@ -84,7 +84,7 @@ Profiles Sync sends Profiles to your warehouse on an hourly basis, beginning aft
 When Segment runs historical backfills:
 
 - The `id_graph_updates` and `external_id_mapping_updates` tables sync your entire historical data to your warehouse.
-- The `identities`, `page`, `screens`, and `tracks` tables sync the last two months of events to your warehouse.
+- Profiles Sync gathers the last two months of all events, including those from the `identities`, `page`, `screens`, and `tracks` tables, and syncs them to your warehouse.
 
 Segment lands the data on an internal staging location, then removes the backfill banner. Segment then syncs the backfill data to your warehouse.