chore: re-enable coverage badge

Author: jedwards1211

README.md

@@ -1,10 +1,7 @@
 # typescript-validators
 
 [![CircleCI](https://circleci.com/gh/jcoreio/typescript-validators.svg?style=svg)](https://circleci.com/gh/jcoreio/typescript-validators)
-
-<!-- Codecov is being buggy at the moment... -->
-<!-- [![Coverage Status](https://codecov.io/gh/jcoreio/typescript-validators/branch/master/graph/badge.svg)](https://codecov.io/gh/jcoreio/typescript-validators) -->
-
+[![Coverage Status](https://codecov.io/gh/jcoreio/typescript-validators/branch/master/graph/badge.svg)](https://codecov.io/gh/jcoreio/typescript-validators)
 [![semantic-release](https://img.shields.io/badge/%20%20%F0%9F%93%A6%F0%9F%9A%80-semantic--release-e10079.svg)](https://github.com/semantic-release/semantic-release)
 [![Commitizen friendly](https://img.shields.io/badge/commitizen-friendly-brightgreen.svg)](http://commitizen.github.io/cz-cli/)
 [![npm version](https://badge.fury.io/js/typescript-validators.svg)](https://badge.fury.io/js/typescript-validators)