update changelog

Changelog.md

@@ -2,5 +2,11 @@
 
 All notable changes to this project will be documented in this file.
 
+## [0.9] - 2025-02-12
+- added repeated confirm click prevention
+- added emails sent out when a payment is received with no associated order
+- added metadata to invoices connecting to customer and order ids
+- handling for when an order doesn't have its payment intent id committed to the db
+
 ## [0.1] - 2025-01-09
 - first build