If you create a snippet from a schematic or PCB layout in a Design Review and paste it in a comment, that snippet will now link to the reference file in the Design Review.
Clicking on the snippet image will follow the link to the PR and to the file the snipped is referencing. Pretty handy!
Here you can see the raw text from the snippet when you paste it into a comment.
Once you save the commit, the snippet will render as an image.
If you click on the snippet image, it will take you to the original file in the Design Review.