update php readme

modules/swagger-codegen/src/main/resources/php/README.mustache

@@ -3,7 +3,7 @@
 {{{appDescription}}}
 {{/appDescription}}
 
-This SDK is automatically generated by the [Swagger Codegen](https://github.com/swagger-api/swagger-codegen) project:
+This PHP package is automatically generated by the [Swagger Codegen](https://github.com/swagger-api/swagger-codegen) project:
 
 - API verion: {{appVersion}}
 - Package version: {{artifactVersion}}
@@ -20,7 +20,7 @@ PHP 5.4.0 and later
 ## Installation & Usage
 ### Composer
 
-You can install the bindings via [Composer](http://getcomposer.org/). Add this to your `composer.json`:
+To install the bindings via [Composer](http://getcomposer.org/), add the following to `composer.json`:
 
 ```
 {
@@ -36,11 +36,12 @@ You can install the bindings via [Composer](http://getcomposer.org/). Add this t
 }
 ```
 
-Then install via `composer install`
+Then run `composer install`
 
 ### Manual Installation
 
-If you do not wish to use Composer, you can download the latest release. Then, to use the bindings, include the `autoload.php` file.
+Download the files and include `autoload.php`:
+
 ```php
     require_once('/path/to/{{packagePath}}/autoload.php');
 ```
@@ -48,6 +49,7 @@ If you do not wish to use Composer, you can download the latest release. Then, t
 ## Tests 
 
 To run the unit tests:
+
 ```
 composer install
 ./vendor/bin/phpunit lib/Tests
@@ -55,7 +57,7 @@ composer install
 
 ## Getting Started
 
-Please follow the installation procedure and then run the following:
+Please follow the [installation procedure](#installation--usage) and then run the following:
 
 ```php
 <?php