Update README.md

Author: dibyendumajumdar

README.md

@@ -13,22 +13,23 @@ The language has the following features:
 * If and While statements
 * Functions
 
-The language syntax is described [ANTLR Grammar](antlr-parser/src/main/antlr4/com/compilerprogramming/ezlang/antlr/EZLanguage.g4).
+The EeZee language specifiaction is [available](https://compilerprogramming.github.io/ez-lang.html).
 The language is intentionally very simple and is meant to have just enough functionality to experiment with compiler implementation techniques.
 
 ## Modules
 
 The project is under development and subject to change. At this point in time, we have following initial implementations:
 
-* [lexer](./lexer/README.md) - a simple tokenizer
-* [parser](./parser/README.md) - a recursive descent parser and AST
-* [types](/types/README.md) - the type definitions
-* [semantic](./semantic/README.md) - semantic analyzer
-* [stackvm](./stackvm/README.md) - a compiler that generates IR for a stack based virtual machine
-* [registervm](./registervm/README.md) - a compiler that generates a so called three-address IR and an interpreter that can execute the IR
+* [lexer](./lexer/README.md) - a simple tokenizer.
+* [parser](./parser/README.md) - a recursive descent parser and AST.
+* [types](/types/README.md) - the type definitions.
+* [semantic](./semantic/README.md) - semantic analyzer.
+* [stackvm](./stackvm/README.md) - a compiler that generates IR for a stack based virtual machine.
+* [registervm](./registervm/README.md) - a compiler that generates a so called three-address IR and an interpreter that can execute the IR.
 * [optvm](./optvm/README.md) - WIP optimizing compiler with SSA transformation, constant propagation, graph coloring register allocation 
-  targeting an abstract machine.
+  targeting an abstract machine. Includes Interpreter to run the abstract machine.
 * [seaofnodes](./seaofnodes/README.md) - WIP compiler that generates Sea of Nodes IR, using SoN backend from [Simple](https://github.com/SeaOfNodes/Simple).
+  Will generate native code.
 
 ## How can you contribute?