use new branch

Author: Kelly Selden

README.md

@@ -1,6 +1,6 @@
 # ember-cli-update-codemods-manifest
 
-[![Build Status](https://travis-ci.com/ember-cli/ember-cli-update-codemods-manifest.svg?branch=v3)](https://travis-ci.com/ember-cli/ember-cli-update-codemods-manifest)
-[![Build status](https://ci.appveyor.com/api/projects/status/h4qxyasxo2nsrd10/branch/v3?svg=true)](https://ci.appveyor.com/project/embercli/ember-cli-update-codemods-manifest/branch/v3)
+[![Build Status](https://travis-ci.com/ember-cli/ember-cli-update-codemods-manifest.svg?branch=v4)](https://travis-ci.com/ember-cli/ember-cli-update-codemods-manifest)
+[![Build status](https://ci.appveyor.com/api/projects/status/h4qxyasxo2nsrd10/branch/v4?svg=true)](https://ci.appveyor.com/project/embercli/ember-cli-update-codemods-manifest/branch/v4)
 
 Master list of codemods and their instructions used by [ember-cli-update](https://github.com/ember-cli/ember-cli-update)