update README

Author: Arisotura

README.md

@@ -2,7 +2,7 @@
 <h2 align="center"><b>melonDS</b></h2>
 <p align="center">
 <a href="http://melonds.kuribo64.net/" alt="melonDS website"><img src="https://img.shields.io/badge/website-melonds.kuribo64.net-%2331352e.svg"></a>
-<a href="http://melonds.kuribo64.net/downloads.php" alt="Release: 0.8.2"><img src="https://img.shields.io/badge/release-0.8.2-%235c913b.svg"></a>
+<a href="http://melonds.kuribo64.net/downloads.php" alt="Release: 0.8.3"><img src="https://img.shields.io/badge/release-0.8.3-%235c913b.svg"></a>
 <a href="https://www.gnu.org/licenses/gpl-3.0" alt="License: GPLv3"><img src="https://img.shields.io/badge/License-GPL%20v3-%23ff554d.svg"></a>
 <a href="https://kiwiirc.com/client/irc.badnik.net/?nick=IRC-Source_?#melonds" alt="IRC channel: #melonds"><img src="https://img.shields.io/badge/IRC%20chat-%23melonds-%23dd2e44.svg"></a>
 </p>