README.md in activeadmin-audit-0.1.2 vs README.md in activeadmin-audit-0.1.4

@@ -41,10 +41,16 @@
 
 ```
 config/initializers/active_admin_audit.rb
 ```
 
+Then you have to install migrations to persist papper trails:
+
+```
+rake active_admin_audit:install:migrations
+```
+
 ## Usage
 
 Copy and apply migrations
 
 ```bash
@@ -97,9 +103,18 @@
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
 
 To install this gem onto your local machine, run `bundle exec rake install`. To release a new version, update the version number in `version.rb`, and then run `bundle exec rake release`, which will create a git tag for the version, push git commits and tags, and push the `.gem` file to [rubygems.org](https://rubygems.org).
+
+We test this gem against different versions of `ActiveAdmin` using [appraisal](https://github.com/thoughtbot/appraisal) gem.
+To regenerate gemfiles run:
+
+    $ appraisal install
+
+To run specs against all versions:
+
+    $ appraisal rake spec
 
 ## Contributing
 
 Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/activeadmin-audit. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [Contributor Covenant](http://contributor-covenant.org) code of conduct.