feat: add zombie cure syringe mod & add audio effects for template mod

SledgeHammer/README.txt

@@ -1,25 +1,20 @@
 SledgeHammer Mod
 ================
+A heavy sledgehammer that makes satisfying impact sounds when hitting things.
 
-A basic example mod that introduces a classic sledgehammer weapon to People Playground.
+How to use:
+- Spawn it from the Melee category
+- Swing it around and hit objects
+- Hear the different impact sounds based on how hard you hit
 
-Features
---------
-• Simple, functional sledgehammer item
-• Basic physics and collision detection
-• Demonstrates core modding concepts
-• Clean, minimal code structure
+Features:
+- Heavy weight for realistic physics
+- Custom impact sound effects
+- Cool sprite design
 
-How to Use
-----------
-1. Activate the mod in your mod list
-2. Find the sledgehammer in the weapons category
-3. Spawn it and start smashing!
+Includes 3 sound effects:
+- Light impacts
+- Heavy impacts  
+- Spawn sound when created
 
-Technical Details
------------------
-This mod serves as an educational example showing:
-• Proper mod.json configuration
-• Item registration with ModAPI
-• Basic sprite loading and assignment
-• Simple weapon implementation
+Enjoy smashing things with style!