add audio classification readme

example/audio_classification/README.md

@@ -1,3 +1,32 @@
-# Audio Classification Flutter App
+# Real-time Audio Classification Flutter
 
-Demonstrates the usage of TensorAudio API.
+Real-time Audio Classification in flutter. It uses:
+
+* Interpreter API from TFLite Flutter Plugin.
+* TensorAudio API from TFLite Flutter Support Library.
+* [YAMNet](https://tfhub.dev/google/lite-model/yamnet/classification/tflite/1),
+  an audio event classification model.
+
+## Build and run
+
+### Step 1. Clone TFLite Flutter Helper repository
+
+Clone TFLite Flutter Helper repository to your computer to get the demo
+application.
+
+```
+git clone https://github.com/am15h/tflite_flutter_helper
+```
+
+### Step 2. Run the application
+
+```
+cd example/audio_classification/
+flutter run
+```
+
+## Resources used:
+
+*   [TensorFlow Lite](https://www.tensorflow.org/lite)
+*   [Audio Classification using TensorFlow Lite](https://www.tensorflow.org/lite/examples/audio_classification/overview)
+*   [YAMNet audio classification model](https://tfhub.dev/google/lite-model/yamnet/classification/tflite/1)