Start pules audio volume control and a page for chapter4 (#25)

* Start page for pulse audio volume control.

* Add blurb for chapter 4

* Update PROGRESS.md

PROGRESS.md

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 | :red_circle:          | 2.2         |
 | :construction_worker: | 3.1         |
 | :white_check_mark:    | 3.1.1       |
-| :red_circle:          | 3.1.2       |
+| :white_check_mark:    | 3.1.2       |
-| :red_circle:          | 3.1.3       |
+| :white_check_mark:    | 3.1.3       |
-| :red_circle:          | 3.1.4       |
+| :white_check_mark:    | 3.1.4       |
-| :red_circle:          | 3.2         |
+| :construction_worker: |  3.2        |
-| :red_circle:          | 3.2.1       |
+| :construction_worker: | 3.2.1       |
 | :red_circle:          | 3.2.2       |
 | :red_circle:          | 3.2.3       |
-| :red_circle:          | 3.2.4       |
+| :construction_worker: | 3.2.4       |
 | :white_check_mark:    | 3.3         |
 | :white_check_mark:    | 3.3.1       |
 | :red_circle:          | 3.3.2       |
-| :red_circle:          | 3.3.3       |
+| :white_check_mark:    | 3.3.3       |
-| :red_circle:          | 3.3.4       |
+| :white_check_mark:    | 3.3.4       |
 | :red_circle:          | 3.3.5       |
-| :red_circle:          | 3.3.6       |
+| :white_check_mark:    | 3.3.6       |
-| :red_circle:          | 3.3.7       |
+| :white_check_mark:    | 3.3.7       |
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+| :white_check_mark:    | 3.3.8       |
 | :red_circle:          | 3.3.9       |
-| :red_circle:          | 3.3.10      |
+| :construction_worker: | 3.3.10      |
 | :red_circle:          | 3.3.11      |
 | :red_circle:          | 4.1         |
 | :red_circle:          | 4.1.1       |

source/3/3.3/3.3.10/PulseAudio_Volume_control.rst

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+Chapter 3.3.10 PulseAudio Volume Control
+========================================
+
+Description
+-----------
+ PulseAudio Volume Control (pavucontrol) is a simple GTK+ based volume
+ control tool (mixer) for the PulseAudio sound server. In contrast to
+ classic mixer tools this one allows you to control both the volume of
+ hardware devices and of each playback stream separately. It also allows
+ you to redirect a playback stream to another output device without
+ interrupting playback
+
+Version
+-------
+ Lubuntu ships with version 3.0-4
+
+How to Launch
+-------------
+To launch pulse audio volume control in the bottom right of the panel there is an icon that looks like a speaker right click and on the menu click sound settings or run pavucontrol from the command line.  

source/4/system_configuration,_manintainece,_and_administration.rst

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+Chapter 4: System Configuration, Maintenance, and Administration
+================================================================
+
+This chapter will show you how to configure update customize your install of lubuntu as well as to install new software that does not ship with the repositories.
+
+.. toctree::
+   :maxdepth: 2
+   :titlesonly: