Update README to use the new API

Author: tmrts

README.md

@@ -2,10 +2,10 @@
 This is a project template for creating licenses using [boilr](https://github.com/tmrts/boilr)
 
 ## Install
-`boilr download tmrts/boilr-license license`
+`boilr template download tmrts/boilr-license license`
 
 ## Usage
-`boilr use license <my-project-dir>`
+`boilr template use license <my-project-dir>`
 
 ## More Information
 For more information please check [boilr](https://github.com/tmrts/boilr)