Add dependency status badge

Author: mischah

readme.md

@@ -1,6 +1,7 @@
 [![very bullgit](https://img.shields.io/badge/very-bullgit-1393d5.svg?style=flat)](https://bullg.it/)
 [![npm version](https://img.shields.io/npm/v/blah-code-cli.svg?style=flat)](https://www.npmjs.org/package/blah-code-cli)
 [![Build Status](https://travis-ci.org/bullgit/blah-code-cli.svg?branch=master)](https://travis-ci.org/bullgit/blah-code-cli)
+[![dependency Status](https://david-dm.org/bullgit/blah-code-cli/status.svg)](https://david-dm.org/bullgit/blah-code-cli#info=dependencies)
 [![devDependency Status](https://david-dm.org/bullgit/blah-code-cli/dev-status.svg)](https://david-dm.org/bullgit/blah-code-cli#info=devDependencies)
 [![XO code style](https://img.shields.io/badge/code_style-XO-5ed9c7.svg)](https://github.com/sindresorhus/xo)
 [![Unicorn approved](https://img.shields.io/badge/unicorn-approved-ff69b4.svg?style=flat)](https://www.youtube.com/watch?v=ihXfH-zR8qA&feature=youtu.be&t=10s)