Update QUICKSTART.md

QUICKSTART.md

@@ -6,7 +6,7 @@
 - Azure DevOps as the DevOps orchestration tool
 - The [Terraform extension for Azure DevOps](https://marketplace.visualstudio.com/items?itemName=ms-devlabs.custom-terraform-tasks) if you are using Terraform to spin up infrastructure
 - Azure service principals to access / create Azure resources from Azure DevOps (or the ability to create them)
-- Git bash, WSL or another shell script editor on your local machine
+- Git bash, WSL or another shell script editor on your local machine; version 2.27 or newer required
    
 
 ## Prerequisites