Based on html5-boilerplate-sass-gulp boilerplate (https://github.com/blackfalcon/html5-boilerplate-sass-gulp)
Install the application: npm install
Default task is $ gulp, which will run all the following commands. Or, you can use them individually as needed.
$ gulp serve // starts browser-sync server
$ gulp build // moves processed files from src/ to docs/. Use --production flag for minification