Adjust image widths in README.md to improve layout.

Reduced the width of images in the README from 480px to 400px for a more consistent and visually balanced appearance. This change enhances the overall readability and presentation of the document.

README.md

@@ -13,9 +13,9 @@ 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="480" />
-<img src="cooperative_cuisine/pygame_2d_vis/images/agents.gif" alt="Gif cooperative cuisine with several ai agents" width="480" />
-<img src="cooperative_cuisine/pygame_2d_vis/images/gui.gif" alt="Gif cooperative cuisine that shows the gui" width="480" />
+<img src="cooperative_cuisine/pygame_2d_vis/images/chaosShort.gif" alt="Gif of cooperative cuisine environment with feature overview" width="400" />
+<img src="cooperative_cuisine/pygame_2d_vis/images/agents.gif" alt="Gif cooperative cuisine with several ai agents" width="400" />
+<img src="cooperative_cuisine/pygame_2d_vis/images/gui.gif" alt="Gif cooperative cuisine that shows the gui" width="400" />
 </div>
 
 ## Installation