adds async local tags

Author: alixhami

speech/cloud-client/src/main/java/com/example/speech/Recognize.java

@@ -256,6 +256,7 @@ public static void syncRecognizeGcs(String gcsUri) throws Exception {
  }
  // [END speech_transcribe_sync_gcs]
 
+ // [START speech_transcribe_async]
  /**
  * Performs non-blocking speech recognition on raw PCM audio and prints the transcription. Note
  * that transcription is limited to 60 seconds audio.
@@ -298,6 +299,7 @@ public static void asyncRecognizeFile(String fileName) throws Exception {
  }
  }
  }
+ // [END speech_transcribe_async]
 
  // [START speech_transcribe_async_time_offsets_gcs]
  /**