Updating Q2 to Q4 in readme (#1183)

Author: rycerrat

README.md

@@ -4,7 +4,7 @@ The [Landing Zone Accelerator (LZA) on AWS solution](https://aws.amazon.com/solu
 
 The LZA v1.3 release (03/2023) focused on delivering AWS Secure Environment Accelerator (ASEA) feature parity and delivered both [CCCS Cloud Medium](https://aws.amazon.com/solutions/implementations/landing-zone-accelerator-on-aws/#Support_for_specific_regions_and_industries) and [Trusted Secure Enclave Sensitive Edition](https://aws.amazon.com/solutions/implementations/landing-zone-accelerator-on-aws/#Support_for_specific_regions_and_industries) sample configuration files. These samples deliver similar outcomes to the ASEA sample configuration file.
 
-The LZA team is currently developing a semi-automated upgrade from ASEA to LZA. Upgrades from ASEA to LZA must occur before Q2 2024. Please monitor this site for a future LZA release that will support the ASEA to LZA semi-automated upgrade capability [here](https://aws.amazon.com/solutions/implementations/landing-zone-accelerator-on-aws/).  
+The LZA team is currently developing a semi-automated upgrade from ASEA to LZA. Upgrades from ASEA to LZA must occur before Q4 2024. Please monitor this site for a future LZA release that will support the ASEA to LZA semi-automated upgrade capability [here](https://aws.amazon.com/solutions/implementations/landing-zone-accelerator-on-aws/).  
 
 Please reach out to your AWS Account Team with any questions.