update README

README.md

@@ -6,5 +6,5 @@ Supports both "pure" and "plus extensions" mode. Pure mode is a strict implement
 ## Quick start
 You can try the compiler online [here](http://oberspace.dyndns.org/oberonjs.html).
 
-To build it locally run build.cmd (Python 2.x or 3.x is required). It will make _out/os.js and _out/oberonjs.html. Open oberonjs.html in the browser and try the compiler!
+To build it locally run "python build.py html" (Python 2.x or 3.x is required). It will make _out/os.js and _out/oberonjs.html. Open oberonjs.html in the browser and try the compiler!
 

build.cmd

@@ -1,2 +0,0 @@
-build.py _out --no-git %*
-start _out\oberonjs.html