Tests

Improve docs for LogInterceptor #652

Job	Run time
Check formatting (dio)	15s
Check formatting (example)	15s
Check formatting (example_flutter_app)	14s
Check formatting (plugins/cookie_manager)	13s
Check formatting (plugins/http2_adapter)	14s
Check formatting (plugins/native_dio_adapter)	11s
Analyze Flutter libraries (example_flutter_app)	39s
Analyze Dart-only libraries (dio)	18s
Analyze Flutter libraries (plugins/native_dio_adapter)	38s
Analyze Dart-only libraries (example)	18s
Analyze Dart-only libraries (plugins/cookie_manager)	20s
Analyze Dart-only libraries (plugins/http2_adapter)	16s
Run unit tests with dio	0s
Run unit tests with Flutter plugins	0s
Run unit tests with plugins	0s
	3m 51s

Provide feedback