Update app.py

app.py

@@ -58,7 +58,7 @@ def generate(
     repetition_penalty: float = 1.2,
 ) -> Iterator[str] | str:
     
-    is_tts = message.strip().startswith("edgetts@tts")
+    is_tts = message.strip().startswith("@tts")
     is_text_only = message.strip().startswith("@text")
 
     # Remove special tags