Update README.md

Author: bardram

README.md

@@ -23,6 +23,7 @@ These are the available plugins in this repository.
 | [notifications](./packages/notifications) | Track device notifications. | ✔️ | ❌  | [![pub package](https://img.shields.io/pub/v/notifications.svg)](https://pub.dartlang.org/packages/notifications) |
 | [movisens_flutter](./packages/movisens_flutter) | Movisens sensor communication. | ✔️ | ✔️  | [![pub package](https://img.shields.io/pub/v/movisens_flutter.svg)](https://pub.dartlang.org/packages/movisens_flutter) |
 | [esense_flutter](./packages/esense_flutter) | eSense ear sensor plugin. | ✔️ | ✔️  | [![pub package](https://img.shields.io/pub/v/esense_flutter.svg)](https://pub.dartlang.org/packages/esense_flutter) |
+| [empatica_e4link](./packages/empatica_e4link) | Empatica E4 sensor plugin. | ✔️ | ❌  | not published |
 | [health](https://github.com/carp-dk/carp-health-flutter) | Apple HealthKit and Google Fit interface plugin. | ✔️ | ✔️  | [![pub package](https://img.shields.io/pub/v/health.svg)](https://pub.dartlang.org/packages/health) |
 | [activity_recognition](./packages/activity_recognition_flutter) | Activity Recognition | ✔️ | ✔️  | [![pub package](https://img.shields.io/pub/v/activity_recognition_flutter.svg)](https://pub.dartlang.org/packages/activity_recognition_flutter) |
 | [audio_streamer](./packages/audio_streamer) | Stream audio as PCM from mic| ✔️ | ✔️  | [![pub package](https://img.shields.io/pub/v/audio_streamer.svg)](https://pub.dartlang.org/packages/audio_streamer) |