May I suggest some improvements around the role itself

Hi,

May I suggest some improvements:
- I have added travis continuous build (in order to test the script) : For instance https://travis-ci.org/AlbanAndrieu/devbox.chrome (I would suggest you do the same. I is free ;-))
- I have added a documentation generation using a tool https://github.com/nickjj/ansigenome : ansigenome gendoc -f md (it will generate the README and LICENSE using the main.yml inside the meta directoy.

Best regards,

Alban