Recent lists the files opened lately, closed ones too, and a jump back to a closed file reopens it

A file closed by accident, its path forgotten, could not be found again:
the jumplist dropped closed panes. Every file opened (a look, a Save of a
scratch, a Restore, a rename) goes first in a list of 200, kept once, its
dot noted when it closes, kept across sessions in $XDG_STATE_HOME/pardes/
recent. `Recent` (SPC f r) shows it in a reused +Recent, each row
`path:line:col open|closed` a look reopens; /recent reads `open|closed
<path>`. The jumplist keeps a closed file's entries, +Jumps marks them
`(closed)`, and Back to one opens the file at its place. acme has no
such thing; its dump and Load are the nearest.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 19 insertions, 0 deletions

diff --git a/README.md b/README.md
index 49ecfa4d..826f86c8 100644
--- a/README.md
+++ b/README.md
@@ -103,6 +103,25 @@ pane shells outlive every frontend; a frontend keeps only what needs the human's
 own display. From inside the editor, `Attach` and `Detach` do the same thing as
 words. See `docs/detached.md`.
 
+## Recent files
+
+A file closed by accident is found again. `Recent` (`SPC f r`) lists the
+files opened lately, most recent first, closed ones too, each marked `open`
+or `closed` at the place its dot was when it closed:
+
+```
+/home/me/src/main.zig:120:5 closed
+/home/me/notes.txt open
+```
+
+A look at a row opens that file there. The list keeps 200 files, each once,
+and lasts across sessions in `$XDG_STATE_HOME/pardes/recent` (else
+`~/.local/state/pardes/recent`). The jumplist keeps a closed file's entries
+too: `Back` to one opens the file again at its place, and `+Jumps` marks it
+`(closed)`. Over 9P, `/recent` reads `open <path>` or `closed <path>` a line.
+acme has nothing like it (its dump and Load are the nearest); pardes goes
+beyond acme here.
+
 ## Tests
 
 ```