add screenshot for abiword and evince

source/3/3.2/3.2.1/abiword.rst

@@ -20,6 +20,11 @@ Version
 -------
 Lubuntu ships with version 3.0.2
 
+Screenshot
+----------
+.. image:: abiword.png
+   :width: 80%
+
 Useage
 ------
 To use abiword you type your document into the the window. You can save your document by clicking the icon that looks like a disk with an icon pointing down on it on the toolbar. If you wish to open this document again after say you shutdown your computer click the button that looks like a folder and a dialog will pop up to find the document. You can check your spelling with the button that says abc with a green squiggly line underneath it. To print press the icon that uses a printer with a down arrow underneath it. 

source/3/3.2/3.2.3/document_viewer.rst

@@ -9,10 +9,14 @@ Version
 -------
 Lubuntu ships with version 3.28
 
-Useage/screenshots
-------------------
+Useage
+------
 To scroll through multiple pages use either the scrollwheel on the mouse or on a touchpad. To go to a specific page in the document in the upper left corner next to the evince icon by default there is a box that says 1 of 6 to jump to that page.
 
+Screenshot
+----------
+  .. image:: document_viewer.png
+     :width: 80%
 
 How to Launch
 -------------