Adjust image formatting in README.md

Replaced `<div>` with `<p>` for image alignment and changed image widths from 640px to 480px. This ensures better responsiveness and visual consistency in the documentation.

README.md

@@ -12,10 +12,10 @@ The overcooked-like cooperative cuisine environment for real-time human cooperat
 For an extensive introduction, have a look at
 the [Documentation](https://scs.pages.ub.uni-bielefeld.de/cocosy/cooperative-cuisine).
 
-<div align="center">
-<img src="cooperative_cuisine/pygame_2d_vis/images/chaosShort.gif" alt="Gif of cooperative cuisine environment with feature overview" width="640">
-<img src="cooperative_cuisine/pygame_2d_vis/images/agents.gif" alt="Gif cooperative cuisine with several ai agents" width="640">
-</div>
+<p align="center">
+<img src="cooperative_cuisine/pygame_2d_vis/images/chaosShort.gif" alt="Gif of cooperative cuisine environment with feature overview" width="480" />
+<img src="cooperative_cuisine/pygame_2d_vis/images/agents.gif" alt="Gif cooperative cuisine with several ai agents" width="480" />
+</p>
 
 ## Installation
 You have two options to install the environment. Either clone it and install it locally or install it in your