README.md in cyberarm_engine-0.17.1 vs README.md in cyberarm_engine-0.18.0

@@ -1,6 +1,6 @@
-# CyberarmEngine
+![CyberarmEngine](https://raw.githubusercontent.com/cyberarm/cyberarm_engine/master/assets/textures/logo.png)
 
 Yet Another Game Engine On Top Of Gosu
 
 ## Features
 * [Shoes-like](http://shoesrb.com) GUI support
@@ -30,10 +30,12 @@
 ```ruby
 require "cyberarm_engine"
 
 class Hello < CyberarmEngine::GuiState
   def setup
+    background Gosu::Color::GRAY
+
     stack do
       label "Hello World!"
 
       button "close" do
         window.close
@@ -41,18 +43,17 @@
     end
   end
 end
 
 class Window < CyberarmEngine::Window
-  def initialize
-    super
+  def setup
     self.show_cursor = true
 
     push_state(Hello)
   end
 end
 
-Window.new.show
+Window.new(width: 800, height: 600, fullscreen: false, resizable: true).show
 ```
 
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake test` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.