First Note that there is not yet an official release on the Chrome Store
Clone(or copy for those unfamiliar with git) this repository to your computer
To install go to chrome://extensions and click "Load unpacked extension" and select the root folder of this project that you created when you copied it to your local machine. This README file will be in there(though you won't be able to see the files in the chrome window) so you understand which folder we're talking about.
Your done set up the settings in the extension and user
Contributing
Anyone can feel free to contribute to this extension and it parent application
Simply create and issue with the feature or the bug and then create a solution and create a pull request.
I'll try and review the PR(pull-request) within a day