README.md in rack-graphql-3.3.0.beta vs README.md in rack-graphql-3.3.0

@@ -32,9 +32,10 @@
   health_on_root_path: health_route,                # optional, health_route value by default (mind map '/' is covering '/any/path-123') 
   root_path_app: YourDashboardApp,                  # optional
   logger: A9n.logger,                               # optional, not set by default
   error_status_code_map: { IamTeapotError => 418 }, # optional
   re_raise_exceptions: true,                        # optional, false by default
+  request_epilogue: -> { ActiveRecord::Base.connection_handler.clear_active_connections! }
 )
 ```
 
 `context_handler` can be a class, object or proc. It must respond to `call` method taking `env` as an argument. It is supposed to decode or transform request properties to graphql context (eg. jwt token to user object, as shown on an example below).