Readme update

Author: DazedNConfused-

.idea/workspace.xml

@@ -6,16 +6,25 @@
 \____|__  (____  /\______  (____  /__| (____  / |_______ (____  /____/|___|  /\___  >___|  /\___  >__|   
         \/     \/        \/     \/          \/          \/    \/           \/     \/     \/     \/       
 ```
-<p style="text-align:center">
+
+<p align="center">
     MaCata - A Cataclysm: DDA macOS Launcher
 </p>
 
+<p align="center">
+    <img src="readme/demo.gif" alt="animated" />
+</p>
+
 ---
 
 ## Requirements
 
 MaCata requires Java 11 to run.
 
+## Installation
+
+Just put the `macatalauncher.jar` in some folder of your choice and double click!
+
 ## Features
 
 ### Current