added target11 example to list, and fixed path to index-by-hand
added target11 example to list, and fixed path to index-by-hand

dart-archive/dart-tutorials-samples,dart-archive/dart-tutorials-samples,ronlobo/dart-tutorials-samples,ronlobo/dart-tutorials-samples,kasperpeulen/dart-tutorials-samples,kasperpeulen/dart-tutorials-samples,dart-archive/dart-tutorials-samples,kasperpeulen/dart-tutorials-samples,ronlobo/dart-tutorials-samples