README.md in ruby_brain-0.1.2 vs README.md in ruby_brain-0.1.3

@@ -9,20 +9,10 @@
 Instead, the speed is very slow and it might not be reasonable for applications to use this library in the core.
 However this library may help you get more deep knowledge around neuralnet/deep learning.
 
 ## Installation
 
-Add this line to your application's Gemfile:
-
-```ruby
-gem 'ruby_brain'
-```
-
-And then execute:
-
-    $ bundle
-
-Or install it yourself as:
+You can install simply
 
     $ gem install ruby_brain
 
 ## Usage