Update README.md with link to MS2

Author: JoeStrout

README.md

@@ -1,7 +1,8 @@
 # MiniScript
 
-This project contains the source code of both C# and C++ implementations of the [MiniScript scripting language](http://miniscript.org).
+This project contains the source code of both C# and C++ implementations of the [MiniScript scripting language](http://miniscript.org), version 1.x.
 
+For MiniScript 2.0 (a from-the-ground-up rewrite), see [here](https://github.com/JoeStrout/miniscript2/).
 
 
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