README.md in etwin-0.0.1 vs README.md in etwin-0.0.2

@@ -14,17 +14,27 @@
 bundle install
 ```
 
 ## Usage
 
-TODO
+```ruby
+require 'etwin'
 
+# ...
+
+client = Etwin::Client::HttpEtwinClient.new(URI.parse("https://eternal-twin.net"))
+user = client.get_user(Etwin::Client::Auth::Guest, Etwin::User::UserId.new("9f310484-963b-446b-af69-797feec6813f"))
+pp user
+```
+
 ## Development
 
 ```
 bundle install
 bundle exec rubocop
 bundle exec rspec
-bundle exec rake release
-bundle exec rake install
+# bundle exec rake release
+# bundle exec rake install
 bundle exec srb tc
+# gem build
+# gem push ...
 ```