Add Codeclimate's badges (#78)

Closes #74

README.md

@@ -3,6 +3,9 @@
 [![Documentation Status](https://readthedocs.org/projects/david-ausubel/badge/?version=latest)](https://david-ausubel.readthedocs.io/en/latest/?badge=latest)
 ![BUILD](https://github.com/ralphg6/david/workflows/Python%20application/badge.svg?branch=master)
 [![Open Source Helpers](https://www.codetriage.com/ralphg6/david/badges/users.svg)](https://www.codetriage.com/ralphg6/david)
+[![Maintainability](https://api.codeclimate.com/v1/badges/2eb8ba0d056e3b52f34a/maintainability)](https://codeclimate.com/github/ralphg6/david/maintainability)
+[![Test Coverage](https://api.codeclimate.com/v1/badges/2eb8ba0d056e3b52f34a/test_coverage)](https://codeclimate.com/github/ralphg6/david/test_coverage)
+
 
 **David** is a powerfull engine dialogue engine with two main parts: `NLU` and `dialogue`. The main objetive of this project is too use existing chatbots projects and uses it to develop your solution.