chores: add related links

app.py

@@ -226,15 +226,14 @@ def predict(
     return ("output.wav", metrics_text)
 
 
-title = "viXTTS Demo"
-
-
 with gr.Blocks(analytics_enabled=False) as demo:
     with gr.Row():
         with gr.Column():
             gr.Markdown(
                 """
-                viXTTS Demo
+                # viXTTS Demo ✨
+                - Github: https://github.com/thinhlpg/vixtts-demo/
+                - viVoice: https://github.com/thinhlpg/viVoice
                 """
             )
         with gr.Column():