Make "Download" button go to latest release

Before, the "Download" button just went to a hardcoded version link. This update makes it so that it'll go directly to the latest release, preventing it from linking to versions not released yet, and to just make it easier to update.

Author: UHDbits

README.md

@@ -6,7 +6,7 @@
   [![macOS Catalina 10.15 to Ventura 13.2](https://img.shields.io/badge/macOS-Catalina%2010.15%20to%20Ventura%2013.2-67320A?logo=apple)](https://apple.com/macos/ventura)
   [![Maintained? Yes!](https://img.shields.io/badge/Maintained%3F-Yes!-334512.svg)](https://github.com/UHDbits/M73-Tiny-OpenCore/graphs/commit-activity)
 
-  [![Download](https://img.shields.io/badge/Download-114B14?logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCIgd2lkdGg9IjI0IiBoZWlnaHQ9IjI0Ij48cGF0aCBkPSJNNC45NyAxMS4wM2EuNzUuNzUgMCAxIDEgMS4wNi0xLjA2TDExIDE0Ljk0VjIuNzVhLjc1Ljc1IDAgMCAxIDEuNSAwdjEyLjE5bDQuOTctNC45N2EuNzUuNzUgMCAxIDEgMS4wNiAxLjA2bC02LjI1IDYuMjVhLjc1Ljc1IDAgMCAxLTEuMDYgMGwtNi4yNS02LjI1Wm0tLjIyIDkuNDdhLjc1Ljc1IDAgMCAwIDAgMS41aDE0LjVhLjc1Ljc1IDAgMCAwIDAtMS41SDQuNzVaIiBzdHlsZT0iZmlsbDojZmZmZmZmIj48L3BhdGg+PC9zdmc+)](https://github.com/UHDbits/M73-Tiny-OpenCore/releases/tag/v0.8.8)
+  [![Download](https://img.shields.io/badge/Download-114B14?logo=data:image/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCAyNCAyNCIgd2lkdGg9IjI0IiBoZWlnaHQ9IjI0Ij48cGF0aCBkPSJNNC45NyAxMS4wM2EuNzUuNzUgMCAxIDEgMS4wNi0xLjA2TDExIDE0Ljk0VjIuNzVhLjc1Ljc1IDAgMCAxIDEuNSAwdjEyLjE5bDQuOTctNC45N2EuNzUuNzUgMCAxIDEgMS4wNiAxLjA2bC02LjI1IDYuMjVhLjc1Ljc1IDAgMCAxLTEuMDYgMGwtNi4yNS02LjI1Wm0tLjIyIDkuNDdhLjc1Ljc1IDAgMCAwIDAgMS41aDE0LjVhLjc1Ljc1IDAgMCAwIDAtMS41SDQuNzVaIiBzdHlsZT0iZmlsbDojZmZmZmZmIj48L3BhdGg+PC9zdmc+)](https://github.com/UHDbits/M73-Tiny-OpenCore/releases/latest)
   [![Configuration for legacy Mac OS X/macOS here](https://img.shields.io/badge/Click%20here%20for%20legacy%20Mac%20OS%20X%2FmacOS%20support.-792316)](https://github.com/UHDbits/M73-Tiny-OpenCore/tree/legacy)
 
   <img src="https://github.com/UHDbits/M73-Tiny-OpenCore/raw/main/Resources/Images/ThinkCentre.png" alt="ThinkCentre M73 Tiny" width="400px"/>