added default value for query

app.py

@@ -83,7 +83,7 @@ with gr.Blocks(title=title) as demo:
         #Image.open("./data/teesside university logo.png"), height=70, show_label=False, container=False)
     with gr.Column(variant="compact"):
         with gr.Row(variant="compact"):
-            query = gr.Textbox(label="Enter your query", show_label=False, placeholder= "Enter your query" , scale=5)
+            query = gr.Textbox(value="Chest X-Ray Photos", label="Enter your query", show_label=False, placeholder= "Enter your query" , scale=5)
             btn = gr.Button("Search query", variant="primary", scale=1)
         
         n_s = gr.Slider(2, 10, label='Number of Top Results', value=5, step=1.0, show_label=True)