Merge pull request #83 from aaronfranke/assetlib-link

Link to the asset library from the README

README.md

@@ -2,6 +2,8 @@
 
 Third person shooter demo made using [Godot Engine](https://godotengine.org).
 
+Check out this demo on the asset library: https://godotengine.org/asset-library/asset/678
+
 ![Screenshot of TPS demo](screenshots/screenshot.png)
 
 ## Godot versions