adding eslint

Gemfile

@@ -21,10 +21,10 @@ gem 'neat'
 gem 'bitters'
 
 group :development do
+  gem 'better_errors'
   gem 'rack-livereload'
   gem 'rails-erd'
   gem 'web-console'
-  gem 'better_errors'
 end
 
 group :development, :test do