README.md in space2dot-0.0.2 vs README.md in space2dot-0.0.3

@@ -1,8 +1,8 @@
 # Space2dot
 ## What
-Convert to underscore the space
+Change the space into dot.
 
 ## Installation
 
 Add this line to your application's Gemfile:
 
@@ -14,22 +14,24 @@
 
 Or install it yourself as:
 
     $ gem install space2dot
 
-If your computer is linux
+If your computer is Ubuntu
 
-    $ sudo apt-get install xclip
+    $ sudo apt-get install xsel
 
-You need alias
+If your computer is CentOS
 
-    $ alias pbcopy='xclip -selection clipboard'
-  
-    $ alias pbpaste='xclip -selection clipboard -o'
+    $ sudo yum -y install xsel
 
-## How to use
+You need to alias
 
+    $ alias pbcopy='xsel --clipboard --input'
+
+## Usage
+
 From the terminal:
 
     $ space2dot target sentence
     => .target.sentence  # copied to the clipboard
 
@@ -38,5 +40,6 @@
 1. Fork it
 2. Create your feature branch (`git checkout -b my-new-feature`)
 3. Commit your changes (`git commit -am 'Add some feature'`)
 4. Push to the branch (`git push origin my-new-feature`)
 5. Create new Pull Request
+