remove code covergae badge until we can figure out the rate-limit issue

Author: OckermanSethGVSU

README.md

@@ -19,7 +19,7 @@
 
 [![PyPI Version][pypi-image]][pypi-url]
 [![Docs Status][docs-image]][docs-url]
-[![Code Coverage][coverage-image]][coverage-url]
+<!-- [![Code Coverage][coverage-image]][coverage-url] -->
 [![Build Status][build-image]][build-url]
 [![Arxiv](https://img.shields.io/badge/ArXiv-2104.07788-orange.svg)](https://arxiv.org/abs/2104.07788)
 [![benedekrozemberczki](https://img.shields.io/twitter/follow/benrozemberczki?style=social&logo=twitter)](https://twitter.com/intent/follow?screen_name=benrozemberczki)