update changelog and readme for version bump

Author: Nilay-squareup

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ### v1.4.5 Apr 25, 2024
 
-* Upgrade Reader SDK version support to 1.7.6 for iOS
+* Upgrade Reader SDK version support to 1.7.4 for iOS
 
 ### v1.4.4 Aug 16, 2023
 

README.md

@@ -6,7 +6,7 @@
 This repo contains a React Native plugin for Square [Reader SDK]. Reader SDK for
 React Native supports the following native Reader SDK versions:
 
-  * iOS: 1.7.6 and above
+  * iOS: 1.7.4 and above
   * Android: 1.7.7 and above
 
 >This plugin loads latest version of native Reader SDK by default according to [update policy for Reader SDK].