Update README.md for using Compreser

README.md

@@ -58,7 +58,8 @@ you need to download all of the necessary vendor libraries. If you're not
 sure if you need to do this, check to see if you have a ``vendor/`` directory.
 If you don't, or if that directory is empty, run the following:
 
-    php bin/vendors install
+    curl -s http://getcomposer.org/installer | php
+    php composer.phar install
 
 Note that you **must** have git installed and be able to execute the `git`
 command to execute this script. If you don't have git available, either install