Typo and grammer.

1. Corrected typos like "Useage" should be "usage". Many other minors.
2. Restructured  paragraph, making it more readable 
3. Adding an example to the Usage section.
4. Extended the overview to give a better description of the application. I took some information from the official site.

source/2/2.1/2.1.3/Quasel_IRC.rst

@@ -1,18 +1,22 @@
 Chapter 2.1.3 Quasel IRC
 ========================
 
-Quasel IRC is an advanced irc client.
+Quassel IRC is a modern, cross-platform, distributed chat client. Quassel aim to bring a pleasurable, comfortable chatting experience to all major platforms (including Linux®, Windows®, and MacOS X® as well as Android smartphones), making communication with your peers not only convenient, but also ubiquitous available. 
 
 Features:
  - Remember Channels and servers
  - SASL authentication
- - notification integration optionally including sounds
- - aliases
- - ignore list
+ - Notifications, including sounds
+ - Aliases
+ - Ignore lists
 
-Useage
+Usage
 ------
-To chat on irc you need to connect to a server and choose a chanel to chat and join with /join in the bottom or use the # join button. To send a query or private message directly to someone type /query username or right click on the user list and select start query. If you wish to view older messages such as if you just got back to your keyboard move up on the scrollwheel of you mouse or drag the scrollbar on the right hand side up and vice versa to view newer messages.
+To chat on irc you need to connect to a server and join a channel. This can be done with the join button or by typing "/join [channel]". To send a query or private message directly to someone type "/query" username or right click on the user list and select start query. If you wish to view older messages just scroll up. Scroll down to view newer messages.
+
+To add the Lubuntu IRC chat network click File-> Networks-> Configure_Networks-> 
++Add(Networks) -> Use preset, select Lubuntu IRC -> click OK.
+To join a channel simple type "/join 1" (where 1 is the channel name), right click the network and select join channel or use the join button.
 
 Screenshot
 ----------
@@ -25,4 +29,4 @@ Lubuntu ships with version 1:0.12.5 of Quassel IRC.
 
 How to Launch
 -------------
-In the menu go to internet -> Quassel IRC or type quassel in the command line. 
+In the menu go to Internet -> Quassel IRC or type quassel in the command line.