README.md in green-button-data-0.7.2 vs README.md in green-button-data-0.7.3

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 # Green Button Data
 
 [![Gem Version](https://img.shields.io/gem/v/green-button-data.svg)](https://rubygems.org/gems/green-button-data)
 [![CI Results](https://img.shields.io/circleci/project/VerdigrisTech/green-button-data.svg)](https://circleci.com/gh/VerdigrisTech/green-button-data)
 [![Dependencies](https://img.shields.io/gemnasium/VerdigrisTech/green-button-data.svg)](https://gemnasium.com/VerdigrisTech/green-button-data)
-[![Code Climate](https://img.shields.io/codeclimate/github/VerdigrisTech/green-button-data.svg)](https://codeclimate.com/github/VerdigrisTech/green-button-data)
+[![Code Climate](https://img.shields.io/codeclimate/maintainability/VerdigrisTech/green-button-data.svg)](https://codeclimate.com/github/VerdigrisTech/green-button-data)
 [![Code Coverage](https://img.shields.io/codecov/c/github/VerdigrisTech/green-button-data.svg)](https://codecov.io/github/VerdigrisTech/green-button-data)
 
 Green Button Data is a Ruby gem that can consume Green Button APIs and parse
 the Green Button data XML schema very quickly. It uses an event-driven
 <abbr title="Simple API for XML">SAX</abbr> parser which parses XML data without