Update install instructions

README.mdown

@@ -7,18 +7,20 @@ Creating a test file or using php's interactive mode can be a bit cumbersome to
 
 It is secure since accessible only from the local host, and very easy to setup and use.
 
-To install either git clone this repo or using Composer: `composer create-project seld/php-console`.
-
 Screenshot
 ----------
 
 <img src="http://seld.be/_misc/php-console.png" alt="PHP Console screenshot" border="0" />
 
-Setup
------
+Installation
+------------
 
 Clone the git repo or download it as a zip/tarball, drop it somewhere in your local web document root and access it with http://localhost/path/to/php-console
 
+You can also install it with Composer using this command:
+
+    composer create-project --stability=dev --keep-vcs seld/php-console
+
 Contributing
 ------------