Explain "no travel path" in Guidebook

doc/Guidebook.mn

@@ -1126,7 +1126,11 @@ The `m' prefix makes the command use a menu.
 .lp #travel
 Travel to a specific location on the map. Default key is '_'.
 Using the ``request menu'' prefix shows a menu of interesting targets in sight
-without asking to move the cursor.
+without asking to move the cursor. When picking a target with cursor and
+the
+.op autodescribe
+-option is on, the top line will show "(no travel path)" if
+your character does not know of a path to that location.
 .lp #turn
 Turn undead away. Autocompletes. Default key is 'M-t'.
 .lp #twoweapon

doc/Guidebook.tex

@@ -1394,7 +1394,9 @@ The `{\tt m}' prefix makes the command use a menu.
 \item[\tb{\#travel}]
 Travel to a specific location on the map. Default key is '{\tt _}'.
 Using the ``request menu'' prefix shows a menu of interesting targets in sight
-without asking to move the cursor.
+without asking to move the cursor. When picking a target with cursor and
+the {\it autodescribe\/}-option is on, the top line will show "(no travel path)" if
+your character does not know of a path to that location.
 %.lp
 \item[\tb{\#turn}]
 Turn undead away. Autocompletes. Default key is '{\tt M-t}'.
@@ -4573,7 +4575,7 @@ of moving 8 units at a time.
 \item[\ib{nostatus\verb+_+updates}]
 Prevent updates to the status lines at the bottom of the screen, if
 your screen-reader reads those lines. The same information can be
-seen via the #attributes command.
+seen via the {\tt \#attributes} command.
 \elist
 
 %.hn2