README.md: update title

Author: giannimassi

README.md

@@ -3,7 +3,7 @@
 [![Software License](https://img.shields.io/badge/license-MIT-brightgreen.svg?style=for-the-badge)](/LICENSE.md)
 [![Go Doc](https://img.shields.io/badge/godoc-reference-blue.svg?style=for-the-badge)](http://godoc.org/github.com/giannimassi/git-checkout-branch)
 
-# git-checkout-interactive
+# git-checkout-branch
 
 ## A cli application for interactively checking out branches