You love GitHub. Of course you do. You love peer review. You especially love sending a pull request back asking for nits to be picked. So when your submitter claims to have addressed your concerns, how do you check? You could walk the commits. You could diff the entire pull request against master. If only you could diff the HEAD of the pull request against the original state of the pull request, letting you check just the new set of commits…
With github-differ you can!
Simply add this tiny extension to your Chrome, and it will decorate each commit in GitHub’s Commits tab. Pick any two commits, and the extension will redirect you to a page showing the comparison of those two commits! Job done!