added codecov badge

jacobwilliams · jacobwilliams · commit 39025bd9c5d0 · 2022-02-27T13:23:11.000-06:00
diff --git a/README.md b/README.md
@@ -2,6 +2,7 @@
 ============
 
 ![Build Status](https://github.com/jacobwilliams/quadpack/actions/workflows/CI.yml/badge.svg)
+[![codecov](https://codecov.io/gh/jacobwilliams/quadpack/branch/master/graph/badge.svg?token=NLAXSJZVWD)](https://codecov.io/gh/jacobwilliams/quadpack)
 
 ### Description
 
