Fix inaccuracies in "Shell Ring" node of Emacs manual

* doc/emacs/misc.texi (Shell Ring): Don't mention 'M-s' and don't
insist on Shell history commands being "jsut like" similar
commands that operate on minibuffer history.  Reported by Jorge
<jorge+list@disroot.org> in emacs-manual-bugs.

1 files changed, 4 insertions, 3 deletions

diff --git a/doc/emacs/misc.texi b/doc/emacs/misc.texi
index 12ebfbf26ac..4aa8e3f700d 100644
--- a/doc/emacs/misc.texi
+++ b/doc/emacs/misc.texi
@@ -1145,10 +1145,11 @@ Display the buffer's history of shell commands in another window
 
   Shell buffers provide a history of previously entered shell
 commands.  To reuse shell commands from the history, use the editing
-commands @kbd{M-p}, @kbd{M-n}, @kbd{M-r} and @kbd{M-s}.  These work
-just like the minibuffer history commands (@pxref{Minibuffer
+commands @kbd{M-p}, @kbd{M-n}, and @kbd{M-r}.  These work
+similar to the minibuffer history commands (@pxref{Minibuffer
 History}), except that they operate within the Shell buffer rather
-than the minibuffer.
+than the minibuffer, and @code{M-r} in a Shell buffer invokes
+incremental search through shell command history.
 
   @kbd{M-p} fetches an earlier shell command to the end of the shell
 buffer.  Successive use of @kbd{M-p} fetches successively earlier