anchor.diff:    - `cgi`, installs `php-cgi` 
     - `pear`, installs Pear 
   
  -  By default, the buildpack installs the `cli` module when you push a stand alone application, and it installs the `fpm` module when you run a web application. You must specify `cgi` and `pear` if you want them installed.
  +  By default, the buildpack installs the `cli` module when you push a standalone application, and it installs the `fpm` module when you run a web application. You must specify `cgi` and `pear` if you want them installed.
   
   ## <a id="buildpack-extensions"></a>Buildpack Extensions
   
  -The buildpack comes with extensions for its default behavior. These are the [HTTPD], [Nginx], [PHP] and [NewRelic] extensions. 
  +The buildpack comes with extensions for its default behavior. These are the [HTTPD], [Nginx], [PHP], and [NewRelic] extensions. 
   
   The buildpack is designed with an extension mechanism, allowing application developers to add behavior to the buildpack without modifying the buildpack code.
   
  -When an application is pushed, the buildpack runs any extensions found in the applications `.extensions` directory.
  +When an application is pushed, the buildpack runs any extensions found in the `.extensions` directory of your application.
   
   The [Development Documentation] explains how to write extensions.
   
  
positive.code: -rw-r--r--  1 daniel  staff  396 Jan  3 08:31 httpd-logging.conf
  ```
  
  In this example, the `httpd-logging.conf` file overrides the one provided by the buildpack. It is recommended that you copy the default from the buildpack and modify it.
  
  The default configuration files are found in the [PHP Buildpack `/defaults/config` directory](https://github.com/cloudfoundry/php-buildpack/tree/master/defaults/config)
  
  Take care when modifying configurations, as it may cause your application to fail, or cause cloudfoundry to fail to stage your application.
  
  You can add your own configuration files. The components will not know about these, so you must ensure they are included. For example, you can add an include directive to the [httpd configuration](https://github.com/cloudfoundry/php-buildpack/blob/master/defaults/config/httpd/2.4.x/httpd.conf) to include your file:
  
  ```
  ServerRoot "${HOME}/httpd"
  
negative.code: 
  Each directory can contain configuration files that the component understands.
  
  For example, to change HTTPD logging configuration:
  
  ```
  $ ls -l .bp-config/httpd/extra/
  