message: Audio Task Lib Doc: Complete the doc with code on how to create AudioBuffer.
  For some reason it was omitted in the previous edition.
diff: @@ -102,6 +102,11 @@ AudioClassifierOptions options;
  options.mutable_base_options()->mutable_model_file()->set_file_name(model_file);
  std::unique_ptr<AudioClassifier> audio_classifier = AudioClassifier::CreateFromOptions(options).value();
  +// Create input audio buffer from data.
  +int input_buffer_size = audio_classifier->GetRequiredInputBufferSize();
  +const std::unique_ptr<AudioBuffer> audio_buffer =
  + AudioBuffer::Create(audio_data.get(), input_buffer_size, kAudioFormat).value();
  +
  // Run inference
  const ClassificationResult result = audio_classifier->Classify(*audio_buffer).value();
  ```
  