working 'Try CoffeeScript' in the docs

src/coffee-script.coffee

@@ -1,3 +1,4 @@
+# Set up for both the browser and the server.
 if process?
   process.mixin require './nodes'
   path:         require('path')
@@ -23,6 +24,10 @@ parser.lexer: {
   showPosition: -> @pos
 }
 
+# Improved error messages.
+parser.parseError: (message, hash) ->
+  throw new Error 'Unexpected ' + hash.token + ' on line ' + hash.line
+
 exports.VERSION: '0.5.0'
 
 # Compile CoffeeScript to JavaScript, using the Coffee/Jison compiler.
@@ -78,7 +83,3 @@ exports.ruby_compile_files: (paths, callback) ->
     return unless message
     puts message
     throw new Error "CoffeeScript compile error"
-
-
-
-