Update README.md

README.md

@@ -17,30 +17,30 @@ Or install it directly via the command line:
 gem install datadog-json_logger
 ```
 
-## Configuration
+## Usage
 
-Before using Datadog::JSONLogger, make sure to configure the necessary options. Add the following code to your application:
+### JSONLogger
+`Datadog::JSONLogger` offers powerful features that you can use in your Ruby application. Here's an example of usage:
 
 ```ruby
-# In your initialization file
-require 'datadog-json_logger'
+# Example in sinatra (app.rb)
+require 'datadog/json_logger'
 
-Datadog::JSONLogger.configure do |config|
-  config.info_environments  = %w[production demo]
-  config.app_name           = ENV.fetch("APP_NAME", "set_APP_NAME_var")
-  config.environment        = ENV.fetch("RACK_ENV", "development")
+def logger
+  @logger ||= Datadog::JSONLogger.new
 end
-```
 
-## Usage
+set :logger, logger
+```
 
-Datadog::JSONLogger offers powerful features that you can use in your Ruby application. Here's an example of usage:
+### SinatraMiddleware
+`Datadog::SinatraMiddleware` allow rack request that formatted to JSON and monkey patch default `Rack::CommonLogger` to disable textual stdout
 
 ```ruby
-# In your code
-require 'datadog-json_logger'
+# Example in sinatra (app.rb)
+require 'datadog/sinatra_middleware'
 
-# TODO
+use Datadog::SinatraMiddleware, logger
 ```
 
 ## Contributing