1 files changed, 2 insertions, 0 deletions
diff --git a/docs/fs.md b/docs/fs.md
index 146ff17b..864bfd12 100644
--- a/docs/fs.md
+++ b/docs/fs.md
@@ -208,6 +208,8 @@ A line written to `look` is a right click on it:
   too.
 - a directory types `ls` into a terminal idle there, else opens one there.
 - a URL opens in the browser.
+- in a diff pane, a whole line of the diff opens the place it names, as a
+  right click on its first column does ([tags.md](tags.md#reviewing-diffs)).
 - a plain word selects its next place after dot, wrapping (`LookWord list`
   on the root ctl lists every place in a `+Search` pane instead). In a
   terminal a word is always listed, rows spelled `@p3:12:5-9`.