Add useage for how to extract and open files from an archieve.

source/2/2.4/2.4.1/ARK.rst

@@ -13,9 +13,13 @@ Supported file formats include:
 
 Screenshot
 ----------
-.. image::ARK.png
+.. image:: ARK.png
  :width 80%: 
 
+Useage
+------
+To open a file in a archieve double click it after open it in the archieve or single click the file and press open. If you want to extract or move a file out of the archieve press the piece of paper with an upward pointed arrow that says extract.  
+
 Version
 -------
 Lubuntu ships version 4:18.04.3 of ARK.