TTS region tag update (GoogleCloudPlatform#1190)

Author: alixhami

texttospeech/beta/src/main/java/com/example/texttospeech/SynthesizeText.java

@@ -83,7 +83,7 @@ public static void synthesizeText(String text) throws Exception {
   }
   // [END tts_synthesize_text]
 
-  // [START tts_synthesize_text_with_audio_profile]
+  // [START tts_synthesize_text_audio_profile_beta]
   /**
    * Demonstrates using the Text to Speech client with audio profiles to synthesize text or ssml
    *
@@ -127,7 +127,7 @@ public static void synthesizeTextWithAudioProfile(String text, String effectsPro
       }
     }
   }
-  // [END tts_synthesize_text_with_audio_profile]
+  // [END tts_synthesize_text_audio_profile_beta]
 
   // [START tts_synthesize_ssml]
   /**