Use <div> instead of <p> for centered image layout

Updated the HTML tags in the README to use `<div>` instead of `<p>` for the image alignment. This ensures better semantic structure and potentially improved compatibility with various renderers.

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).
 
-<p align="center">
+<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" />
-</p>
+</div>
 
 ## Installation
 You have two options to install the environment. Either clone it and install it locally or install it in your