Update and rename README.rdoc to README.md

Author: Fivell

README.rdoc README.mdREADME.rdoc renamed to README.md

@@ -1,24 +1,32 @@
-active_admin_sidebar 
-====================
+# ActiveAdminSidebar
 
-easy change sidebar position with activeadmin (tested with activeadmin ~> 1.0.0.pre)
+Provides ability to manipulate sidebar position with activeadmin (tested with activeadmin ~> 1.0.0.pre)
 
 
 Add including of css file 
 
+```scss
   @import "active_admin_sidebar"; 
+```
 
-to the  app/assets/stylesheets/active_admin.css.scss
+to the  
+``` 
+app/assets/stylesheets/active_admin.css.scss 
+```
 
 And including of coffee file (optional, need only for collapsed sidebar)
 
+```js
   //= require active_admin_sidebar
+```
 
-to the  app/assets/javascripts/active_admin.js
-
+to the  
+``` 
+app/assets/javascripts/active_admin.js
+```
 
 Changing sidebar position dynamically with before_filter
-
+```ruby
   # app/admin/posts.rb
   ActiveAdmin.register Post do
     before_filter :left_sidebar!, only: [:show]
@@ -28,12 +36,12 @@ Changing sidebar position dynamically with before_filter
   ActiveAdmin.register Comment do
     before_filter :right_sidebar!
   end
-
+```
 
 
 Moving sidebar to the left within all resource (config/initializers/active_admin.rb)
 
-
+```ruby
   # == Controller Filters
   #
   # You can add before, after and around filters to all of your
@@ -42,24 +50,22 @@ Moving sidebar to the left within all resource (config/initializers/active_admin
   config.before_filter do
     left_sidebar! if respond_to?(:left_sidebar!)
   end 
+```
 
 Also you can use sidebar collapsing. It will add css icon in title of first sidebar will save current state in session
-
+```ruby
   left_sidebar!(collapsed: true)
-
+```
 You can override button color according to your color theme:
-
+```css
   body.active_admin {
     #active_admin_content.left_sidebar, #active_admin_content.collapsed_sidebar {
       .collapse_btn, .uncollapse_btn {
-          cursor: pointer;
           background-color: #767270;
-          border-radius: 5px;
-          color: #ffffff;
       }
     }
    }
-
+```
 
 Example