add additional details to README

Author: Mordil

README.md

@@ -1,9 +1,14 @@
 [![License](https://img.shields.io/badge/License-Apache%202.0-yellow.svg)](https://www.apache.org/licenses/LICENSE-2.0.html)
 [![Build](https://img.shields.io/circleci/project/github/Mordil/nio-redis/master.svg?logo=circleci)](https://circleci.com/gh/Mordil/nio-redis/tree/master)
 [![Swift](https://img.shields.io/badge/Swift-5.0-brightgreen.svg?colorA=orange&colorB=4E4E4E)](https://swift.org)
+[![Redis](https://img.shields.io/badge/Redis-5-brightgreen.svg?colorA=red&colorB=4E4E4E)](https://redis.io/download)
 
 # NIORedis
 
+A non-blocking Swift driver for Redis built with [SwiftNIO](https://github.com/apple/swift-nio).
+
+This package defines everything you need to work with Redis through the [**Re**dis **S**eralization **P**rotocol (RESP)](https://redis.io/topics/protocol).
+
 * Pitch discussion: [Swift Server Forums](https://forums.swift.org/t/swiftnio-redis-client/19325)
 * Proposal: [SSWG-0004](https://github.com/swift-server/sswg/blob/56a26b50ade45d624b54abe13c7d1f88526f9bb1/proposals/0004-nio-redis.md)