Add stub on how to launch vanilla libreoffice desktop and how to open files + version.

source/2/2.2/2.2.1/libreoffice.rst

@@ -0,0 +1,16 @@
+Chapter 2.2.1 Libreoffice
+=========================
+
+Libreoffice is an open source full office suite. In the menu there are shortcuts to different libreoffice applications and your recently used files. 
+
+Useage
+------
+To open a recently used file in libreoffice they are shown in the main part of the window. To open a program or to create a file from a file dialog are along the left hand column. 
+
+Version
+-------
+Lubuntu ships with version 6.1.2.1 of libreoffice.
+
+How to launch
+-------------
+From the menu -> Office -> Libreoffice to launch libreoffice or run libreoffice from the command line. 

source/2/2.2/Office_Applications.rst

@@ -5,6 +5,7 @@ Chapter 2.2 Office Applications
   :maxdepth: 2
   :titlesonly: 
 
+  2.2.1/libreoffice
   2.2.2/libreoffice_calc
   2.2.3/libreoffice_impress
   2.2.4/libreoffice_math