Add readme and changelog entries

Author: annemirasol

changelog.txt

@@ -12,6 +12,7 @@
 * Update - Enable/disable Amazon Pay by adding/removing it from the enabled payment methods list.
 * Add - Add ACSS payment tokenization.
 * Update - Update payment method type for Amazon Pay orders.
+* Fix - Fix subscription renewal issues for Amazon Pay.
 
 = 9.3.1 - 2025-03-14 =
 * Fix - Temporarily disables the subscriptions detached notice feature due to long loading times on stores with many subscriptions.

readme.txt

@@ -123,5 +123,6 @@ If you get stuck, you can ask for help in the [Plugin Forum](https://wordpress.o
 * Add - Add ACSS payment tokenization.
 * Fix - Fix variable dump in ACH customer error message when retrying a payment.
 * Update - Update payment method type for Amazon Pay orders.
+* Fix - Fix subscription renewal issues for Amazon Pay.
 
 [See changelog for all versions](https://raw.githubusercontent.com/woocommerce/woocommerce-gateway-stripe/trunk/changelog.txt).