Please document rolling back a file to a previous revision in Undo Changes
It took me several minutes to find how to revert a file to a previous revision using TortoiseGit 22.214.171.124 (on Windows 10). Unfortunately, the Help's Undo Changes page only covers reversion of uncommitted changes (as well as reverting one revision, in a note at the bottom). It turns out that this is easy, as explained in mlibby's answer and mxmoss's answer on this discussion thread, but I was expecting it to be offered in the per-revision contextual menu (shown by right-clicking at the top). This expectation came from using TortoiseSvn. The equivalent menu in JetBrains PyCharm's history also offers "Get" for that. So I think adding a menu item would be good too.