Update documentation

Author: sebastianbergmann

README.md

@@ -7,40 +7,23 @@
 
 ## Requirements
 
-* PHP_CodeCoverage 1.2 requires PHP 5.3.3 (or later) but PHP 5.4.7 (or later) is highly recommended.
-* [Xdebug](http://xdebug.org/) 2.0.5 (or later) is required but Xdebug 2.2.1 (or later) is highly recommended.
+* PHP 5.3.3 is required but using the latest version of PHP is highly recommended
+* [Xdebug](http://xdebug.org/) 2.1.3 is required but using the latest version of Xdebug is highly recommended
 
 ## Installation
 
-You can use the [PEAR Installer](http://pear.php.net/manual/en/guide.users.commandline.cli.php) or [Composer](http://getcomposer.org/) to download and install PHP_CodeCoverage as well as its dependencies
-
-### PEAR Installer
-
-Depending on your OS distribution and/or your PHP environment, you may need to install PEAR or update your existing PEAR installation before you can proceed with the following instructions. `sudo pear upgrade PEAR` usually suffices to upgrade an existing PEAR installation. The [PEAR Manual ](http://pear.php.net/manual/en/installation.getting.php) explains how to perform a fresh installation of PEAR.
-
-The following two commands (which you may have to run as `root`) are all that is required to install PHP_CodeCoverage using the PEAR Installer:
-
-    pear config-set auto_discover 1
-    pear install pear.phpunit.de/PHP_CodeCoverage
-
-After the installation you can find the PHP_CodeCoverage source files inside your local PEAR directory; the path is usually `/usr/lib/php/PHP/CodeCoverage`.
-
-### Composer
-
 To add PHP_CodeCoverage as a local, per-project dependency to your project, simply add a dependency on `phpunit/php-code-coverage` to your project's `composer.json` file. Here is a minimal example of a `composer.json` file that just defines a dependency on PHP_CodeCoverage 1.2:
 
     {
         "require": {
-            "phpunit/php-code-coverage": ">=1.2.10,<1.3.0"
+            "phpunit/php-code-coverage": "1.2.*"
         }
     }
 
 ## Using the PHP_CodeCoverage API
 
 ```php
 <?php
-require 'PHP/CodeCoverage/Autoload.php';
-
 $coverage = new PHP_CodeCoverage;
 $coverage->start('<name of test>');