Add skanlite pref screenshot

source/2/2.3/2.3.3/Skanlite.rst

@@ -40,3 +40,5 @@ from the command line.
 Customizing
 -----------
 To customize your settings for Skanlite press the :guilabel:`Settings` button. To choose where to save your scans enter the path in the :guilabel:`Save Location` field or press the button to the right. To ask what to save what you are scanning change the :guilabel:`Save mode` menu :menuselection:`Open the save dialog for every image`. To ask for each scan in the :guilabel:`Save Mode` menu select :menuselection:`Open the save dialog for first image only` selection. To choose the default save name and format enter in the :guilabel:`Name & Format` filed with a drop down menu for scan format. To choose what quality to save your quality check the :guilabel:`Specify save quality` checkbox. Then drag the slider or percentage to change the quality. To change the Dots per inch resolution when previewing check the :guilabel:`Set preview resolution` checkbox and then change field to the right side. To not automatically crop the selection check the :guilabel:`Disable automatic selections` checkbox. To get the scanner back to its default values press the :guilabel:`Revert scanner options to default values`.
+
+.. image:: skanlite-pref.png