Change URI description

README.md

 *Libraries for parsing URLs.*
 
 * [Purl](https://github.com/jwage/purl) - A URL manipulation library.
-* [Uri](https://github.com/thephpleague/uri) - A URL manipulation Library.
+* [Uri](https://github.com/thephpleague/uri) - Another URL manipulation Library.
 * [PHP Domain Parser](https://github.com/jeremykendall/php-domain-parser) - A domain suffix parser library.
 
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