Update README.md

Author: IPdotSetAF

README.md

@@ -4,9 +4,11 @@ This is a highly customizable animated Matrix wallpaper for Wallpaper Engine (We
 
 ## Preview [(Web Demo)](https://ipdotsetaf.github.io/NeoMatrix/)
 
-<img src="preview.gif" width=300px/>
-<img src="preview2.gif" width=300px/>
-<img src="preview3.gif" width=300px/>
+<p>
+   <img src="preview.gif" width=300px/>
+   <img src="preview2.gif" width=300px/>
+   <img src="preview3.gif" width=300px/>
+</p>
 
 ##