Added rewrite notice

index.md

@@ -4,6 +4,8 @@
 
 [![Running Comprehensive Tests](https://github.com/Ratstail91/Toy/actions/workflows/c-cpp.yml/badge.svg)](https://github.com/Ratstail91/Toy/actions/workflows/c-cpp.yml)
 
+**Notice**: Toy is undergoing a complete rewrite. These docs are valid for version 1.x only.
+
 # Preamble
 
 The Toy programming language is an imperative bytecode-intermediate embedded scripting language. It isn't intended to operate on its own, but rather as part of another program, the "host". This process is intended to allow a decent amount of easy customisation by the host's end user, by exposing logic in script files. Alternatively, binary files in a custom format can be used as well.