Update app.py

app.py

@@ -144,9 +144,9 @@ with gr.Blocks(
             )
             url_input = gr.Textbox(
                 label="Document or Image URL",
-                placeholder="e.g., https://arxiv.org/pdf/2501.12948",
+                placeholder="https://arxiv.org/pdf/2501.12948",
                 visible=True,
-                lines=1
+                lines=2
             )
             file_input = gr.File(
                 label="Upload PDF or Image",