Update README.md

Author: jpomykala

README.md

@@ -11,7 +11,6 @@
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-[![Maintainability](https://api.codeclimate.com/v1/badges/af2f6a7680929a8dba41/maintainability)](https://codeclimate.com/github/simplelocalize/simplelocalize-cli/maintainability)
 [![codecov](https://codecov.io/gh/simplelocalize/simplelocalize-cli/branch/master/graph/badge.svg)](https://codecov.io/gh/simplelocalize/simplelocalize-cli)
 
 SimpleLocalize CLI is a command-line tool that allows you to manage translations in your software project,