Make sure you have NodeJS and NPM installed. Then run:
npm install
Then run the following: (you must have Gulp installed npm install -g gulp
)
gulp build
Then from Chrome, visit chrome://extensions/ and
"Load unpacked extension..." from the dist/
build folder.
If you want to develop or contribute, you can run the following:
gulp watch
This will automatically build on changes. Some changes are automatically loaded into Chrome, and other require clicking the Reload link below the package.