Watch master branch only

Author: AndrewJo

README.md

@@ -2,7 +2,7 @@
 
 > An ember-cli-deploy-plugin to upload to GitHub pages.
 
-[![Build](https://img.shields.io/circleci/project/VerdigrisTech/ember-cli-deploy-ghpages.svg)](https://circleci.com/gh/VerdigrisTech/ember-cli-deploy-ghpages)
+[![Build](https://img.shields.io/circleci/project/VerdigrisTech/ember-cli-deploy-ghpages/master.svg)](https://circleci.com/gh/VerdigrisTech/ember-cli-deploy-ghpages)
 
 This plugin uploads your built Ember dist files to GitHub pages.