[PATCH 7/8] doc: initial documentation for notmuch-tree mode

[David Bremner]

---
 doc/notmuch-emacs.rst | 25 +++++++++++++++++++++++++
 1 file changed, 25 insertions(+)

diff --git a/doc/notmuch-emacs.rst b/doc/notmuch-emacs.rst
index 62c1b709..1d3291b8 100644
--- a/doc/notmuch-emacs.rst
+++ b/doc/notmuch-emacs.rst
@@ -208,9 +208,34 @@ pressing RET after positioning the cursor on a hidden part.
 ``?``
     Display full set of key bindings
 
+.. _notmuch-tree:
+
 notmuch-tree
 ============
 
+``notmuch-tree-mode`` displays the results of a "notmuch tree" of your
+email archives. Each line in the buffer represents a single
+message giving the relative date, the author, subject, and any
+tags.
+
+``<return>``
+   Displays that message.
+
+``N``
+    Move to next message
+
+``P``
+    Move to previous message
+
+``n``
+    Move to next matching message
+
+``p``
+    Move to previous matching message
+
+``?``
+    Display full set of key bindings
+
 Global key bindings
 ===================
 
-- 
2.17.0