Merge pull request #2725 from lamsorsen/patch-2

Clarify the location of the "Layout" menu

getting_started/step_by_step/ui_main_menu.rst

@@ -137,8 +137,8 @@ define the margins' size. Scroll down the ``Control`` class, to the
 -  Margin Left: *120*
 -  Margin Bottom: *80*
 
-We want the container to fit the window. In the Viewport, open the
-``Layout`` menu and select the last option, ``Full Rect``.
+We want the container to fit the window. In the toolbar above the Viewport, 
+open the ``Layout`` menu and select the last option, ``Full Rect``.
 
 Add the UI sprites
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