autofix by rubocop

README.md

@@ -21,6 +21,7 @@ $ grayscott 40 -w 256 -h 256 # size of model. display is fixed to 512 x 512 pixe
 ## Usage with terminal(example)
 
 $ bundle install
+
 $ bundle exec bin/console
 
 ```ruby
@@ -39,6 +40,7 @@ c.model.v.rand(0.0, 0.15)
 c.color = 'green' # colorful is slow. 
 Gtk.main
 ```
+
 ![screenshot](https://raw.githubusercontent.com/kojix2/Gray-Scott/screenshot/screenshot/reverse-green.png)
 
 ## Known issue

gray_scott_gtk3.gemspec

@@ -21,8 +21,8 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.add_dependency 'numo-narray'
   spec.add_dependency 'gtk3'
+  spec.add_dependency 'numo-narray'
 
   spec.add_development_dependency 'bundler', '~> 1.17'
   spec.add_development_dependency 'rake', '~> 10.0'

lib/gray_scott_gtk3/controller.rb

@@ -175,6 +175,7 @@ def doing_now?
     end
 
     private
+
     def debug_p_u
       p model.u
     end
@@ -190,6 +191,5 @@ def debug_p_f
     def debug_p_k
       p model.k
     end
-
   end
 end