README.md in buildkite-test_collector-1.1.1 vs README.md in buildkite-test_collector-1.1.2

@@ -20,11 +20,11 @@
 
 Or add this to your Gemfile’s test group:
 
 ```ruby
 group :test do
-  gem "buildkite-test_collector"
+  gem 'buildkite-test_collector'
 end
 ```
 
 ### Step 2
 
@@ -32,11 +32,11 @@
 
 Add the following code to your RSpec setup file:
 
 ```ruby
 # spec/spec_helper.rb
-require "buildkite/test_collector"
+require 'buildkite/test_collector'
 Buildkite::TestCollector.configure(hook: :rspec)
 ```
 
 Run your tests locally:
 
@@ -48,11 +48,11 @@
 
 Add the following code to your Minitest setup file:
 
 ```ruby
 # test/test_helper.rb
-require "buildkite/test_collector"
+require 'buildkite/test_collector'
 Buildkite::TestCollector.configure(hook: :minitest)
 ```
 
 Run your tests locally:
 
@@ -91,9 +91,11 @@
 ```
 bundle exec rspec
 ```
 
 Useful resources for developing collectors include the [Buildkite Test Analytics docs](https://buildkite.com/docs/test-analytics).
+
+See [DESIGN.md](DESIGN.md) for an overview of the design of this gem.
 
 ## 👩‍💻 Contributing
 
 Bug reports and pull requests are welcome on GitHub at https://github.com/buildkite/test-collector-ruby