diff-tour skill now with better narration, hunk expansion and reference popups

diff-tour Show archive.org snapshot is a skill that walks you through a diff with a nice reading order and narration.

Some improvements from the latest version:

• Narration quality has been improved signficantly. Narration is tighter and more relevant.
• Warnings in highlighted hunks are more actionable.
• You can now expand a line with more context lines, like on GitHub or GitLab.
• Some non-obvious references to methods or classes are now links that show a popup with an explanation.

To update your skill:

npx skills update --global diff-tour

If you haven't installed the skills and would like to try it out:

npx skills add triskweline/skills --global --skill diff-tour