Update README.md

Author: wenbinf

README.md

@@ -43,7 +43,7 @@ If you have any questions, please contact [[email protected]](hello@listenno
 
 ## Installation
 
-Install the official [Composer](http://getcomposer.org/) package of the Listen Notes Podcast API:
+Install the official [Composer](http://getcomposer.org/) package of [the Listen Notes Podcast API](https://packagist.org/packages/listennotes/podcast-api):
 
 ```sh
 composer require listennotes/podcast-api