Coverage status icon branch master

Author: eithe

README.md

@@ -1,5 +1,5 @@
 [![Build Status](https://travis-ci.com/eithe/node-red-contrib-jsonstat.svg?branch=master)](https://travis-ci.com/eithe/node-red-contrib-jsonstat) 
-[![Coverage Status](https://coveralls.io/repos/github/eithe/node-red-contrib-jsonstat/badge.svg?branch=code-coverage)](https://coveralls.io/github/eithe/node-red-contrib-jsonstat?branch=code-coverage)
+[![Coverage Status](https://coveralls.io/repos/github/eithe/node-red-contrib-jsonstat/badge.svg?branch=master)](https://coveralls.io/github/eithe/node-red-contrib-jsonstat?branch=master)
 
 # jsonstat nodes for Node-RED