docs(readme): added codeclimate badge

Author: kbrandwijk

README.md

@@ -1,5 +1,5 @@
 # graphql-static-binding [![npm](https://img.shields.io/npm/v/graphql-static-binding.svg?style=for-the-badge)](https://www.npmjs.com/package/graphql-static-binding)[![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg?style=for-the-badge)](https://github.com/semantic-release/semantic-release)
-[![Travis](https://img.shields.io/travis/supergraphql/graphql-static-binding.svg?style=for-the-badge)](https://travis-ci.org/supergraphql/graphql-static-binding)[![Greenkeeper badge](https://img.shields.io/badge/renovate-enabled-brightgreen.svg?style=for-the-badge)](https://renovateapp.com/)[![Code Climate](https://img.shields.io/codeclimate/maintainability/supergraphql/graphql-static-binding.svg?style=for-the-badge)](https://codeclimate.com/github/supergraphql/graphql-static-binding)   
+[![Travis](https://img.shields.io/travis/supergraphql/graphql-static-binding.svg?style=for-the-badge)](https://travis-ci.org/supergraphql/graphql-static-binding)[![Greenkeeper badge](https://img.shields.io/badge/renovate-enabled-brightgreen.svg?style=for-the-badge)](https://renovateapp.com/)[![Code Climate](https://img.shields.io/codeclimate/maintainability/supergraphql/graphql-static-binding.svg?style=for-the-badge)](https://codeclimate.com/github/supergraphql/graphql-static-binding)[![Code Climate](https://img.shields.io/codeclimate/c/supergraphql/graphql-static-binding.svg?style=for-the-badge)](https://codeclimate.com/github/supergraphql/graphql-static-binding)   
 Generate static binding files for a GraphQL schema
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