[gimp-help] doc: improve menus/windows.xml a bit.

[Jacob Boerema <jboerema src gnome org>]

commit a7e69ce97306ef3eb3d11eb68890c4cab614cde5
Author: Jacob Boerema <jgboerema gmail com>
Date:   Sat May 29 19:31:57 2021 -0400

    doc: improve menus/windows.xml a bit.
    
    Removed the remark that the hide docks
    state was not kept after restarting in
    single-window mode since that issue
    was apparently fixed some time ago.

 src/menus/windows.xml | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)
---
diff --git a/src/menus/windows.xml b/src/menus/windows.xml
index c86000e47..422a51642 100644
--- a/src/menus/windows.xml
+++ b/src/menus/windows.xml
@@ -72,7 +72,9 @@ xmlns:xi="http://www.w3.org/2001/XInclude";>
       <para>
         <command>Toolbox</command>: clicking on this command or using the
         <keycombo><keycap>Ctrl</keycap><keycap>B</keycap></keycombo> shortcut,
-        raises the toolbox usually together with the tool options dock.
+        raises the toolbox usually together with the tool options dock. Note
+        that in single-window mode this usually doesn't have any effect since
+        the toolbox is part of the main window.
       </para>
     </listitem>
 
@@ -88,7 +90,8 @@ xmlns:xi="http://www.w3.org/2001/XInclude";>
       <para>
         The list of open docks: in this list, docks are named with the
         name of the active dialog in this dock. Clicking on a dock name raises
-        this dock.
+        this dock. Note that in single-window mode only docks that are not
+        part of the main window will be shown here.
       </para>
     </listitem>
 
@@ -96,9 +99,8 @@ xmlns:xi="http://www.w3.org/2001/XInclude";>
       <para>
         <command>Hide Docks</command> (<keycap>Tab</keycap>): this command hides
         all docks (usually to the left and right of the image), leaving the
-        image window alone. The command status is kept on quitting GIMP; then,
-        GIMP starts with no dock in multi-window mode, but not in single-window
-        mode, although the option is checked!
+        image window alone. The command status is kept on quitting GIMP and will
+        be in the same state when GIMP starts.
       </para>
     </listitem>