README.md in rubocop-migrations-0.1.1 vs README.md in rubocop-migrations-0.1.2

@@ -1,14 +1,17 @@
 # RuboCop Migrations
 
-Rails migrations analysis as a extension of [RuboCop](https://github.com/bbatsov/rubocop). Heavily inspired by [`rubocop-cask`](https://github.com/caskroom/rubocop-cask) which in turn is inspired by [`rubocop-rspec`](https://github.com/nevir/rubocop-rspec).
+Rails migrations analysis as a extension
+of [RuboCop](https://github.com/bbatsov/rubocop). Heavily inspired
+by [`rubocop-cask`](https://github.com/caskroom/rubocop-cask) which in turn is
+inspired by [`rubocop-rspec`](https://github.com/nevir/rubocop-rspec).
 
 ## Installation
 
 Just install the `rubocop-migrations` gem
 
-```bash
+```shell
 gem install rubocop-migrations
 ```
 
 or if you use bundler put this in your `Gemfile`
 
@@ -17,33 +20,38 @@
 ```
 
 
 ## Usage
 
-You need to tell RuboCop to load the Migrations extension. There are three ways to do this:
+You need to tell RuboCop to load the Migrations extension. There are three ways
+to do this:
 
 ### RuboCop configuration file
 
 Put this into your `.rubocop.yml`:
 
 ```yaml
 require: rubocop/migrations
 ```
 
-Now you can run `rubocop` and it will automatically load the RuboCop Migrations cops together with the standard cops.
+Now you can run `rubocop` and it will automatically load the RuboCop Migrations
+cops together with the standard cops.
 
 ### Command line
 
-```bash
+```shell
 rubocop --require rubocop/migrations
 ```
 
 ## The Cop
 
-All cops are located under [`lib/rubocop/cop/migrations`](lib/rubocop/cop/migrations), and contain examples/documentation.
+All cops are located
+under [`lib/rubocop/cop/migrations`](lib/rubocop/cop/migrations), and contain
+examples/documentation.
 
-In your `.rubocop.yml`, you may treat the Cask cops just like any other cop. For example:
+In your `.rubocop.yml`, you may treat the Cask cops just like any other cop. For
+example:
 
 ```yaml
 Migrations/RemoveIndex:
   Enabled: false
 ```
@@ -54,15 +62,27 @@
 2. Create your feature branch (`git checkout -b my-new-feature`)
 3. Commit your changes (`git commit -am 'Add some feature'`)
 4. Push to the branch (`git push origin my-new-feature`)
 5. Create new Pull Request
 
-For running the spec files, this project depends on RuboCop's spec helpers. This means that in order to run the specs locally, you need a (shallow) clone of the RuboCop repository:
+### Running the tests
 
-```bash
-git submodule update --init --depth 1 vendor/rubocop
+We use Appraisals in order to run the tests with different rubocop versions to
+ensure compatibility. 
+
+To run the specs with all supported rubocop versions first install the required
+dependencies with:
+
+```shell
+bundle exec appraisals install
 ```
 
+Then run the specs by just running `rake` it will run specs with all the
+versions.
+
+For more info just check the appraisals documentation
+https://github.com/thoughtbot/appraisal
+
 ## License
 
-`rubocop-migrations` is MIT licensed. [See the accompanying file](MIT-LICENSE.md) for
-the full text.
+`rubocop-migrations` is MIT
+licensed. [See the accompanying file](MIT-LICENSE.md) for the full text.