Update README.md

README.md

@@ -4,6 +4,7 @@ http://www.moonsharp.org
 
 
 An interpreter for a very close cousin of the Lua language, written entirely in C# for the .NET, Mono, Xamarin and Unity3D platforms.
+It targets Lua 5.1, with some features of Lua 5.2 backported.
 
 
 **Project Status**