README.md in okay-4.0.0 vs README.md in okay-5.0.0

@@ -63,9 +63,29 @@
 
 # Uses +data+ as the request body.
 Okay::HTTP.post("https://httpbin.org/post", data: "hello, world!")
 ```
 
+### GraphQL
+
+```ruby
+require "okay/graphql"
+require "json"
+
+query = GraphQL.query {
+    viewer {
+        login
+    }
+}
+
+response = request.submit!(:github, {bearer_token: ENV["DEMO_GITHUB_TOKEN"]})
+JSON.parse(response.body)
+# =>
+    {"data" =>
+      {"viewer" =>
+        {"login" => "duckinator"}}}
+```
+
 ## Development
 
 After checking out the repo, run `bin/setup` to install dependencies. Then, run `rake spec` to run the tests. 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).