Added info to README.md

README.md

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 # unity-destruction
 
 An open-source script to destroy objects realistically in Unity3D.
+
+## Features
+
+- Make stuff break up on impact with other stuff!
+- Make stuff break up when there's nothing underneath supporting it!
+- Make stuff break up for no reason whatsoever!
+- Make stuff explode!
+- Make stuff make sounds when it breaks up!
+- Make stuff make particles when it breaks up!
+- Includes an example game where you can throw a ball at a cube. It's more fun than it sounds.
+
+## How to use
+
+- Make an unbroken and a broken version of your object. I recommend using Blender's [cell fracture](https://duckduckgo.com/?q=blender+cell+fracture) feature.
+- Add 'Destruction/Assets/Scripts/Destruction.cs' to the unbroken one.
+- Mess with the settings until you get the breaking apart effect how you want it.
+- For examples, see 'Destruction/main.unity'.
+- Use Destruction.Break() to break things via a script, or Destruction.BreakWithExplosiveForce(float, float) to break things with explosive force via a script.