adding autoprefixer as a dev dependency in package.json

Merge pull request #1 from sixlive/add-package-scripts

adding custom extractor for purgecss to avoid stripping out classes with prefixes

updating tailwind to 0.4.0

adding purgeCSS to the build step. Default bundle goes from 235kb to 9kb for the demo page

Adds NPM/Yarn scripts

adding image to the README

adding padding horizontal to the demo container

renaming pkg variable to paths

initial commit