Fix instance I missed in 59f7bbe1236c (#1626300)

Doc/install/index.rst

@@ -101,8 +101,8 @@ one command from a terminal::
 
    python setup.py install
 
-For Windows, this command should be run from a command prompt windows ("DOS
-box")::
+For Windows, this command should be run from a command prompt windows
+(:menuselection:`Start --> Accessories`)::
 
    setup.py install
 
@@ -144,7 +144,7 @@ archive file to :file:`C:\\Temp`, then it would unpack into
 :file:`C:\\Temp\\foo-1.0`; you can use either a archive manipulator with a
 graphical user interface (such as WinZip) or a command-line tool (such as
 :program:`unzip` or :program:`pkunzip`) to unpack the archive.  Then, open a
-command prompt window (:menuselection:`Start --> Accessories`) and run::
+command prompt window and run::
 
    cd c:\Temp\foo-1.0
    python setup.py install