[ci skip] slack badge

Author: mickhansen

README.md

@@ -3,7 +3,7 @@
 [![Build Status](https://travis-ci.org/sequelize/sequelize.svg?branch=master)](https://travis-ci.org/sequelize/sequelize) [![Dependency Status](https://david-dm.org/sequelize/sequelize.svg)](https://david-dm.org/sequelize/sequelize) [![Test Coverage](https://codeclimate.com/github/sequelize/sequelize/badges/coverage.svg)](https://codeclimate.com/github/sequelize/sequelize)
 [![Bountysource](https://www.bountysource.com/badge/team?team_id=955&style=bounties_received)](https://www.bountysource.com/teams/sequelize/issues?utm_source=Sequelize&utm_medium=shield&utm_campaign=bounties_received)
 [![Flattr this](http://api.flattr.com/button/flattr-badge-large.png)](http://flattr.com/thing/1259407/Sequelize)
-[![Slack](http://sequelize-slack.herokuapp.com)](http://sequelize-slack.herokuapp.com/badge.svg)
+[![Slack Status](http://sequelize-slack.herokuapp.com/badge.svg)](http://sequelize-slack.herokuapp.com)
 
 Sequelize is a promise-based Node.js/io.js ORM for Postgres, MySQL, MariaDB, SQLite and Microsoft SQL Server. It features solid transaction support, relations, read replication and more.