Updating screenshots.

docs/source/getting_started.rst

@@ -82,7 +82,7 @@ Once the logbook has been opened, its name will appear in the status bar. All lo
    .. figure::  images/logbook.png
       :align:   center
       
-      The PyQSO main window, showing the records in a log called ``SO50`` (for contacts via the `amateur radio satellite <https://www.amsat.org/>`_ SO-50), and the DX cluster tool in the toolbox below it.
+      The PyQSO main window, showing the records in a log called ``SO50`` (for contacts via the `amateur radio satellite <https://www.amsat.org/>`_ SO-50), and the World Map tool in the toolbox below it.
 
 Closing a logbook
 -----------------