add codecov badge

Robin Schultz · Robin Schultz · commit c01416178487 · 2018-08-30T13:54:57.000-04:00
diff --git a/README.md b/README.md
@@ -1,4 +1,5 @@
 [![Build Status](https://travis-ci.org/anigenero/log4js2.svg?branch=master)](https://travis-ci.org/anigenero/log4js2)
+[![codecov](https://codecov.io/gh/anigenero/log4js2/branch/master/graph/badge.svg)](https://codecov.io/gh/anigenero/log4js2)
 
 # log4js2
 log4js2 is a fast and lightweight logging library that enables logging flexibility within JavaScript/TypeScript applications, 

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,5 @@`
`1`	`1`	`[![Build Status](https://travis-ci.org/anigenero/log4js2.svg?branch=master)](https://travis-ci.org/anigenero/log4js2)`
	`2`	`+[![codecov](https://codecov.io/gh/anigenero/log4js2/branch/master/graph/badge.svg)](https://codecov.io/gh/anigenero/log4js2)`
`2`	`3`
`3`	`4`	`# log4js2`
`4`	`5`	`log4js2 is a fast and lightweight logging library that enables logging flexibility within JavaScript/TypeScript applications,`