git-stash documentation: add missing backtick

Signed-off-by: Steve Hoelzer <shoelzer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>

Documentation/git-stash.txt

@@ -45,7 +45,7 @@ save::
 list::
 
 	List the stashes that you currently have.  Each 'stash' is listed
-	with its name (e.g. `stash@\{0}` is the latest stash, `stash@\{1} is
+	with its name (e.g. `stash@\{0}` is the latest stash, `stash@\{1}` is
 	the one before, etc.), the name of the branch that was current when the
 	stash was made, and a short description of the commit the stash was
 	based on.