Fix spelling of AMQP and improve description

README.md

 *Libraries for working with event and task queues.*
 
 * [Pheanstalk](https://github.com/pda/pheanstalk) - A Beanstalkd client library.
-* [PHP AMPQ](https://github.com/videlalvaro/php-amqplib) - An AMPQ library.
+* [PHP AMQP](https://github.com/videlalvaro/php-amqplib) - A pure PHP AMQP library.
 * [Thumper](https://github.com/videlalvaro/Thumper) - A RabbitMQ pattern library.
 * [Bernard](https://github.com/bernardphp/bernard) - A multibackend abstraction library.
 
 * Collecting Garbage: [1](http://www.php.net/manual/en/features.gc.refcounting-basics.php) [2](http://www.php.net/manual/en/features.gc.collecting-cycles.php) [3](http://www.php.net/manual/en/features.gc.performance-considerations.php) - A series about the PHP garbage collection internals.
 
 # Contributing
-Please see [CONTRIBUTING](https://github.com/php-loep/Plates/blob/master/CONTRIBUTING.md) for details.
+Please see [CONTRIBUTING](https://github.com/php-loep/Plates/blob/master/CONTRIBUTING.md) for details.