Update Readme

Author: mwenge

README.md

@@ -14,7 +14,7 @@ sudo apt install build-essentials wine virtual-jaguar
 
 ### Build the assembler toolchain
 
-We use three tools to build the source code: `vasm`, `rmac` and `rln`. If you already have these installed you may have some
+We use two tools to build the source code: `rmac` and `rln`. If you already have these installed you may have some
 luck using them, if not you can build the versions included in this repository as they are known to work. 
 
 First you must run the following to set up the git submodules containing the assembler toolchain:
@@ -27,9 +27,7 @@ git submodule update
 Now you can build the toolchain, as follows:
 
 ```sh
-cd vasm-mirror
-make CPU=jagrisc SYNTAX=madmac
-cd ../rmac
+cd rmac
 make
 cd ../rln
 make