Translated:

contributing.rst
intro.rst
middlewares.rst
organizing_controllers.rst
providers.rst
services.rst
testing.rst
usage.rst
web_servers.rst
cookbook/error_handler.rst
cookbook/form_no_csrf.rst
cookbook/index.rst
cookbook/json_request_body.rst
cookbook/session_storage.rst
cookbook/sub_requests.rst
cookbook/translating_validation_messages.rst
cookbook/validator_yaml.rst