Add League URL.

README.md

@@ -185,6 +185,7 @@ Please see [CONTRIBUTING](https://github.com/ziadoz/awesome-php/blob/master/CONT
 
 * [Purl](https://github.com/jwage/purl) - A URL manipulation library.
 * [PHP Domain Parser](https://github.com/jeremykendall/php-domain-parser) - A domain suffix parser library.
+* [Url](https://github.com/thephpleague/url) - A simple URL manipulation library.
 
 ## Email
 *Libraries for sending and parsing email.*