docs: update readme

Author: mrholek

README.md

@@ -51,7 +51,7 @@ CoreUI is meant to be the UX game changer. Pure & transparent code is devoid of
 
 ## Quick Start
 
-- [Download the latest release](https://github.com/coreui/coreui-free-vue-admin-template/archive/refs/heads/v4.zip)
+- [Download the latest release](https://github.com/coreui/coreui-free-vue-admin-template/archive/refs/heads/main.zip)
 - Clone the repo: `git clone https://github.com/coreui/coreui-free-vue-admin-template.git`
 
 ### Instalation