Update README.md

Add UnifiedArchive project

README.md

@@ -239,6 +239,7 @@ Please see [CONTRIBUTING](https://github.com/ziadoz/awesome-php/blob/master/CONT
 * [Hoa Mime](https://github.com/hoaproject/Mime) - Another MIME detection library.
 * [Lurker](https://github.com/henrikbjorn/Lurker) - A resource tracking library.
 * [PHP FFmpeg](https://github.com/PHP-FFmpeg/PHP-FFmpeg/) - A wrapper for the [FFmpeg](http://www.ffmpeg.org/) video library.
+* [UnifiedArchive](https://github.com/wapmorgan/UnifiedArchive) - A unified reader and writer of compressed archives.
 
 ## Streams
 *Libraries for working with streams.*
@@ -774,7 +775,7 @@ Libraries to help manage database schemas and migrations.
 * [PHP Expression](https://github.com/Kitano/php-expression) - A PHP expression language.
 * [PHP PassBook](https://github.com/eymengunay/php-passbook) - A PHP library for iOS PassBook.
 * [PHP-GPIO](https://github.com/ronanguilloux/php-gpio) - A library for playing with the Raspberry PI's GPIO pins.
-* [PHP-ML](https://github.com/php-ai/php-ml) - A library for Machine Learning in PHP.  
+* [PHP-ML](https://github.com/php-ai/php-ml) - A library for Machine Learning in PHP.
 * [PHPCR](https://github.com/phpcr/phpcr) - A PHP port of the Java Content Repository (JCR).
 * [PHPStack](http://dunkels.com/adam/phpstack/) - A TCP/IP stack proof of concept written in PHP.
 * [print_o](https://github.com/koriym/print_o) - An object graph visualizer.