update the note

Author: renetapopova

modules/ROOT/pages/database-internals/store-formats.adoc

@@ -120,8 +120,8 @@ Therefore, migrating all databases to `block` format is recommended to ensure op
 
 [NOTE]
 ====
-Be aware that changing the store format changes the built-in _id property and elementID of nodes and relationships.
-This is because _id represents the elements physical location in the store file.
+Be aware that changing the store format changes the internal IDs assigned to nodes and relationships.
+This is because the ID represents the element’s physical location in the store file.
 ====
 
 Changing the store format is an IO-intensive offline operation, which re-writes all data in the new format.