Update release notes

Author: itsmeichigo

RELEASE-NOTES.txt

@@ -9,6 +9,7 @@
 - [*] Fix order details presentation when opened from booking details [https://github.com/woocommerce/woocommerce-ios/pull/16331]
 - [*] Show POS feedback surveys for eligible merchants [https://github.com/woocommerce/woocommerce-ios/pull/16325]
 - [*] Fix product variation selection for order creation [https://github.com/woocommerce/woocommerce-ios/pull/16317]
+- [Internal] Fix warning when displaying offline banner on My Store [https://github.com/woocommerce/woocommerce-ios/pull/16347]
 
 23.6
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