Leaving feedback on student work

[When I am leaving feedback for a student using a pull request, how can I view the entire code from a student’s latest commit, without the changes from the last commit highlighted? Right now only the changes from the last commit show up, in green, with deletions in red.

I just want to see the entire completed file, and be able to leave comments for the student line-by-line. And hide the deleted code.] Never mind. Clicking the “Files Changed” tab gets me the view I want. Thanks. but see below too.

Also, in the Notes for Teachers drop-down that appears on every new Pull Request in GitHub Classroom, there is a broken link at the bottom: “Leaving assignment feedback in GitHub”. It goes to https://github.com/help/leaving-feedback-in-github which is an invalid link.