README.md in rails_failover-0.2.0 vs README.md in rails_failover-0.3.0

@@ -18,10 +18,26 @@
 
     $ gem install rails_failover
 
 ## Usage
 
+### ActiveRecord
+
+In `config/application.rb` add `require 'rails_failover/active_record'` after `require "active_record/railtie"`.
+
+In your database configuration, simply add `replica_host` and `replica_port` to your database configuration.
+
+```
+production:
+  host: <primary db server host>
+  port: <primary db server port>
+  replica_host: <replica db server host>
+  replica_port: <replica db server port>
+```
+
+The gem will automatically create an `ActiveRecord::ConnectionAdapters::ConnectionHandler` with the `ActiveRecord::Base.reading_role` as the `handler_key`.
+
 ### Redis
 
 ```
 Redis.new(host: "127.0.0.1", port: 6379, replica_host: "127.0.0.1", replica_port: 6380, connector: RailsFailover::Redis::Connector))
 ```
@@ -39,21 +55,35 @@
 end
 ```
 
 ## Development
 
-After checking out the repo, run `bin/setup` to install dependencies. Then, run `bin/rspec` to run the tests. You can also run `bin/console` for an interactive prompt that will allow you to experiment.
+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).
 
+### Testing
+
+#### ActiveRecord
+
+The ActiveRecord failover tests are run against a dummy Rails server. Run the following commands to run the test:
+
+1. `make setup_pg`
+1. `make start_pg`
+1. `bin/rspec active_record`. You may also run the tests with more unicorn workers by adding the `UNICORN_WORKERS` env variable.
+
+#### Redis
+
+`bin/rspec redis`
+
 ## Contributing
 
-Bug reports and pull requests are welcome on GitHub at https://github.com/[USERNAME]/rails_failover. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/[USERNAME]/rails_failover/blob/master/CODE_OF_CONDUCT.md).
+Bug reports and pull requests are welcome on GitHub at https://github.com/discourse/rails_failover. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the [code of conduct](https://github.com/discourse/rails_failover/blob/master/CODE_OF_CONDUCT.md).
 
 
 ## License
 
 The gem is available as open source under the terms of the [MIT License](https://opensource.org/licenses/MIT).
 
 ## Code of Conduct
 
-Everyone interacting in the RailsFailover project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/[USERNAME]/rails_failover/blob/master/CODE_OF_CONDUCT.md).
+Everyone interacting in the RailsFailover project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the [code of conduct](https://github.com/discourse/rails_failover/blob/master/CODE_OF_CONDUCT.md).