added placeholder images

README.md

@@ -2,7 +2,10 @@
 
 **Monsterfangen** is an exciting mobile game where you catch, train, and battle monsters in a vibrant fantasy world. Explore unique biomes, complete challenges, and create your ultimate monster team!
 
-![Gameplay Screenshot](res://screenshots/gameplay.png)
+<div style="display: flex; justify-content: space-between;">
+  <img src="screenshots/gameplay.png" width="45%" />
+  <img src="screenshots/battle.png" width="45%" />
+</div>
 
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