Update app.py

app.py

@@ -78,6 +78,6 @@ with gr.Blocks() as demo:
     # Live preview update
     text_input.change(preview_text, inputs=text_input, outputs=markdown_preview)
 
-    demo.load(preview_text, inputs=[default_text], outputs=markdown_preview)
+    demo.load(preview_text, inputs=[default_md], outputs=markdown_preview)
     
 demo.launch()