Update README

Motivation:

After moving to GitLab, and while still having a GitHub mirror, it is important to drive people to the proper location for getting help and reporting bugs or feature requests.

Also, some information should be updated to include new tags, formatting, and a link to the new API docs.

Modifications:

README is updated to point users to the GitLab repository and to have up-to-date information about the project.

Result:

Users should know where to reach project maintainers and where to find documentation.

Author: Mordil

README.md

@@ -1,5 +1,8 @@
-[![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)
+| :bell: The [GitHub repository](https://github.com/Mordil/swift-redis-nio-client) is a **read-only** mirror of the GitLab repository. For issues and merge requests, [please visit GitLab](https://gitlab.com/mordil/swift-redis-nio-client). :bell: |
+|---|
+
+[![License](https://img.shields.io/badge/License-Apache%202.0-yellow.svg)](./LICENSE.txt)
+[![Build](https://gitlab.com/Mordil/swift-redis-nio-client/badges/master/pipeline.svg)](https://gitlab.com/Mordil/swift-redis-nio-client/pipelines)
 [![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)
 
@@ -9,25 +12,27 @@ A non-blocking Swift client for [Redis](https://redis.io/) built on top of [Swif
 
 This package defines everything you need to work with Redis through the [**Re**dis **S**eralization **P**rotocol (RESP)](https://redis.io/topics/protocol).
 
-* Swift Server Working Group Proposal: [SSWG-0004](https://github.com/swift-server/sswg/blob/d391da355718a8f396ef86b3563910089d5e5992/proposals/0004-nio-redis.md)
-    * [Pitch thread](https://forums.swift.org/t/swiftnio-redis-client/19325) 
-    * [Discussion Thread](https://forums.swift.org/t/discussion-nioredis-nio-based-redis-driver/22455/)
+**RedisNIO** is part of the [Swift on Server Working Group](https://github.com/swift-server/sswg) ecosystem.
+
+| Proposal | Pitch | Discussion | Review | Vote |
+|----------|-------|------------|--------|------|
+| [SSWG-0004](https://github.com/swift-server/sswg/blob/master/proposals/0004-nio-redis.md) | [2019-01-07](https://forums.swift.org/t/swiftnio-redis-client/19325) | [2019-04-01](https://forums.swift.org/t/discussion-nioredis-nio-based-redis-driver/22455) | **TBD** | **TBD** |
 
-## Installation
+## :package: Installation
 
-To install `RedisNIO`, just add the package as a dependency in your [**Package.swift**](https://github.com/apple/swift-package-manager/blob/master/Documentation/PackageDescriptionV4.md#dependencies)
+To install **RedisNIO**, just add the package as a dependency in your [**Package.swift**](https://github.com/apple/swift-package-manager/blob/master/Documentation/PackageDescriptionV4.md#dependencies)
 
 ```swift
 dependencies: [
-    .package(url: "https://github.com/Mordil/swift-redis-nio-client.git", .upToNextMinor(from: "0.8.0")
+    .package(url: "https://github.com/Mordil/swift-redis-nio-client.git", from: "1.0.0-alpha.1")
 ]
 ```
 
 and run the following command: `swift package resolve`
 
-## Getting Started
+## :zap: Getting Started
 
-`RedisNIO` is ready to use right after installation.
+**RedisNIO** is ready to use right after installation.
 
 ```swift
 import RedisNIO
@@ -44,14 +49,20 @@ let result = try connection.set("my_key", to: "some value")
 print(result) // Optional("some value")
 ```
 
-## Contributing
+## :closed_book: Documentation
+
+API Documentation is generated every time a new release is published.
+
+The latest version's docs are always available at https://mordil.gitlab.io/swift-redis-nio-client
+
+## :construction: Contributing
 
-Check out [CONTRIBUTING.md](CONTRIBUTING.md) for more information on how to help with RedisNIO.
+Check out [CONTRIBUTING.md](CONTRIBUTING.md) for more information on how to help with **RedisNIO**.
 
 It is highly recommended to use [Docker](https://docker.com) to install Redis locally.
 
 ```bash
-docker run -d -p 6379:6379 --name redisnio redis:5
+docker run -d -p 6379:6379 --name redis redis:5
 ```
 
 Otherwise, install Redis directly on your machine from [Redis.io](https://redis.io/download).