chore: add link to community slack (#202)

Author: bcoe

README.md

@@ -1,11 +1,12 @@
 # Standard Version
 
-[![Join the chat at https://gitter.im/conventional-changelog/standard-version](https://badges.gitter.im/conventional-changelog/standard-version.svg)](https://gitter.im/conventional-changelog/standard-version?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
-
 [![Build Status](https://travis-ci.org/conventional-changelog/standard-version.svg?branch=master)](https://travis-ci.org/conventional-changelog/standard-version)
 [![NPM version](https://img.shields.io/npm/v/standard-version.svg)](https://www.npmjs.com/package/standard-version)
 [![Coverage Status](https://coveralls.io/repos/conventional-changelog/standard-version/badge.svg?branch=)](https://coveralls.io/r/conventional-changelog/standard-version?branch=master)
 [![Conventional Commits](https://img.shields.io/badge/Conventional%20Commits-1.0.0-yellow.svg)](https://conventionalcommits.org)
+[![community slack](http://devtoolscommunity.herokuapp.com/badge.svg)](http://devtoolscommunity.herokuapp.com)
+
+_Having problems? want to contribute? join our [community slack](http://devtoolscommunity.herokuapp.com)_.
 
 > stop using `npm version`, use `standard-version` it rocks!