chore(paeckchen-core): add readme badges

README.md

@@ -1,4 +1,34 @@
 # paeckchen-core
 
-[![GitHub license](https://img.shields.io/github/license/paeckchen/paeckchen.svg)]()
-[![npm](https://img.shields.io/npm/v/paeckchen-core.svg)](https://www.npmjs.com/package/paeckchen-core)
+[![license][license-image]][license-url]
+[![npm][npm-version-core-image]][npm-version-core-url]
+[![dep][daviddm-core-image]][daviddm-core-url]
+[![dev][daviddm-dev-core-image]][daviddm-dev-core-url]
+[![travis][travis-image]][travis-url]
+[![appveyor][appveyor-image]][appveyor-url]
+[![coveralls][coveralls-image]][coveralls-url]
+[![commitizen][commitizen-image]][commitizen-url]
+
+---
+[license-image]: https://img.shields.io/github/license/paeckchen/paeckchen.svg
+[license-url]: https://github.com/paeckchen/paeckchen
+
+[travis-image]: https://travis-ci.org/paeckchen/paeckchen-core.svg?branch=master
+[travis-url]: https://travis-ci.org/paeckchen/paeckchen-core
+
+[appveyor-image]: https://ci.appveyor.com/api/projects/status/r5bibqgy676fbf87/branch/master?svg=true
+[appveyor-url]: https://ci.appveyor.com/project/KnisterPeter/paeckchen-core/branch/master
+
+[coveralls-image]: https://coveralls.io/repos/github/paeckchen/paeckchen-core/badge.svg?branch=master
+[coveralls-url]: https://coveralls.io/github/paeckchen/paeckchen-core?branch=master
+
+[commitizen-image]: https://img.shields.io/badge/commitizen-friendly-brightgreen.svg
+[commitizen-url]: http://commitizen.github.io/cz-cli/
+
+[npm-version-core-image]: https://img.shields.io/npm/v/paeckchen-core.svg
+[npm-version-core-url]: https://www.npmjs.com/package/paeckchen-core
+
+[daviddm-core-image]: https://david-dm.org/paeckchen/paeckchen/status.svg?path=packages/paeckchen-core
+[daviddm-core-url]: https://david-dm.org/paeckchen/paeckchen?path=packages/paeckchen-core
+[daviddm-dev-core-image]: https://david-dm.org/paeckchen/paeckchen/dev-status.svg?path=packages/paeckchen-core
+[daviddm-dev-core-url]: https://david-dm.org/paeckchen/paeckchen?path=packages/paeckchen-core&type=dev