Update README.md

demos/README.md

@@ -10,6 +10,7 @@ The directory containes many speech applications in multi scenarios.
 * metaverse - 2D AR with TTS  
 * punctuation_restoration - restore punctuation from raw text
 * speech recogintion - recognize text of an audio file 
+* speech server - Server for Speech Task, e.g. ASR,TTS,CLS
 * speech translation - end to end speech translation  
 * story talker - book reader based on OCR and TTS  
 * style_fs2 - multi style control for FastSpeech2 model