Index: README.md
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--- README.md	(revision 38387ceb48afdaac1fa1f6f49357e6aa5a0d672d)
+++ README.md	(revision 658eaeeabe6b68a424a62ffd695452a6f1abb579)
@@ -101,4 +101,6 @@
   - Calculates and updates financial metrics
 
+The trigger is implemented in `sql/01_invoice_status_trigger.sql`.
+
 ### Indexes