Updated README banner to new style

README.md

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+<p align="center">
+    <a href="http://kitura.io/">
+        <img src="https://raw.githubusercontent.com/IBM-Swift/Kitura/master/Sources/Kitura/resources/kitura-bird.svg?sanitize=true" height="100" alt="Kitura">
+    </a>
+</p>
+
+
+<p align="center">
+    <a href="http://www.kitura.io/">
+    <img src="https://img.shields.io/badge/docs-kitura.io-1FBCE4.svg" alt="Docs">
+    </a>
+    <a href="https://travis-ci.org/IBM-Swift/Kitura-CredentialsHTTP">
+    <img src="https://travis-ci.org/IBM-Swift/Kitura-CredentialsHTTP.svg?branch=master" alt="Build Status - Master">
+    </a>
+    <img src="https://img.shields.io/badge/os-macOS-green.svg?style=flat" alt="macOS">
+    <img src="https://img.shields.io/badge/os-linux-green.svg?style=flat" alt="Linux">
+    <img src="https://img.shields.io/badge/license-Apache2-blue.svg?style=flat" alt="Apache 2">
+    <a href="http://swift-at-ibm-slack.mybluemix.net/">
+    <img src="http://swift-at-ibm-slack.mybluemix.net/badge.svg" alt="Slack Status">
+    </a>
+</p>
+
 # Kitura-CredentialsHTTP
 A plugin for the Kitura-Credentials framework that authenticates using HTTP Basic and Digest authentication.
 
-[![Build Status - Master](https://travis-ci.org/IBM-Swift/Kitura.svg?branch=master)](https://travis-ci.org/IBM-Swift/Kitura-CredentialsHTTP)
-![Mac OS X](https://img.shields.io/badge/os-Mac%20OS%20X-green.svg?style=flat)
-![Linux](https://img.shields.io/badge/os-linux-green.svg?style=flat)
-![Apache 2](https://img.shields.io/badge/license-Apache2-blue.svg?style=flat)
-
 ## Summary
 A plugin for [Kitura-Credentials](https://github.com/IBM-Swift/Kitura-Credentials) framework that authenticates using HTTP Basic and Digest authentication.