Update app.py

app.py

@@ -400,7 +400,7 @@ def build_interface():
             - **📱 Usage**: Educational, accessibility, and cultural preservation
             
             ### 🎭 Available Speakers:
-            {ettes.join(SPEAKER_NAMES)}
+            {" ".join(SPEAKER_NAMES)}
             
             **License**: Creative Commons Attribution-NonCommercial-ShareAlike 4.0 (CC BY-NC-SA 4.0)