README.markdown in image_optim_rails-0.1.0 vs README.markdown in image_optim_rails-0.2.0

@@ -13,17 +13,17 @@
 ## Installation
 
 Add to your `Gemfile`:
 
 ```ruby
-gem 'image_optim'
+gem 'image_optim_rails'
 ```
 
 With [`image_optim_pack`](https://github.com/toy/image_optim_pack):
 
 ```ruby
-gem 'image_optim'
+gem 'image_optim_rails'
 gem 'image_optim_pack'
 ```
 
 ## Usage
 
@@ -32,14 +32,21 @@
 You can provide options for image_optim used for preprocessor through config:
 
 ```ruby
 config.assets.image_optim.nice = 20
 config.assets.image_optim.svgo = false
+config.assets.image_optim.gifsicle.careful = true
 ```
 
-Check available options in [options section of image_optim](https://github.com/toy/image_optim#options).
+Or through config files `config/image_optim.yml` and `config/image_optim/#{RAILS_ENV}.yml`.
 
-Image optimization can be time consuming, so depending on your deployment process you may prefer to optimize original asset files.
+Caching is enabled by default in directory `tmp/cache/image_optim`.
+
+Check all available options in [options section of image_optim](https://github.com/toy/image_optim#options).
+
+## ChangeLog
+
+In separate file [CHANGELOG.markdown](CHANGELOG.markdown).
 
 ## Copyright
 
 Copyright (c) 2013-2016 Ivan Kuchin. See [LICENSE.txt](LICENSE.txt) for details.