Merge b5d1e5c88f into 7f5933d913

README.md

 * [Pawl](https://github.com/ratchetphp/Pawl) - An asynchronous web socket client.
 * [Prooph Event Store](https://github.com/prooph/event-store) - An event source component to persist event messages.
 * [PHP Defer](https://github.com/php-defer/php-defer) - Golang's defer statement for PHP.
+* [Pub/Sub Redis PHP](https://github.com/RioRizkyRainey/pubsub-redis-php) - Simple event-driven asynchronous use Redis Pub/Sub for PHP.
 * [Ratchet](https://github.com/ratchetphp/Ratchet) - A web socket library.
 * [ReactPHP](https://github.com/reactphp/reactphp) - An event-driven non-blocking I/O library.
 * [RxPHP](https://github.com/ReactiveX/RxPHP) - A reactive extension library.