The Github "Add single comment" Chrome extension provides a convenient solution for users looking to streamline their workflow on Github. This extension adds a simple shortcut to the "Add Single comment" button on Github's pull request review page, enhancing efficiency and productivity. For Mac users, the shortcut is `cmd+shift+enter`, while non-Mac users can utilize `ctrl+shift+enter`.

With this lightweight and user-friendly extension, users can easily navigate Github's interface and speed up the process of adding comments to pull requests. By simplifying this common task, the extension aims to improve the overall user experience for Github users seeking a more efficient review process.