Update prompt

Update prompt_textbox placeholder and default value, increase maximum value for min_len slider, change default value for sampling radio button, and update default value for top_p slider.

app.py

@@ -60,15 +60,15 @@ with gr.Blocks(theme=theme, analytics_enabled=False,css=css) as demo:
     with gr.Row():
         with gr.Column(scale=3):
             image_input = gr.Image(type="pil")
-            prompt_textbox = gr.Textbox(label="Prompt:", placeholder="prompt", lines=2)
+            prompt_textbox = gr.Textbox(label="Prompt:", placeholder="prompt", value="Please describe this image.", lines=2)
             output = gr.Textbox(label="Output")
             submit = gr.Button("Run", variant="primary")
 
         with gr.Column(scale=1):
             min_len = gr.Slider(
                 minimum=1,
-                maximum=50,
-                value=1,
+                maximum=100,
+                value=100,
                 step=1,
                 interactive=True,
                 label="Min Length",
@@ -85,7 +85,7 @@ with gr.Blocks(theme=theme, analytics_enabled=False,css=css) as demo:
         
             sampling = gr.Radio(
                 choices=["Beam search", "Nucleus sampling"],
-                value="Beam search",
+                value="Nucleus sampling",
                 label="Text Decoding Method",
                 interactive=True,
             )
@@ -93,7 +93,7 @@ with gr.Blocks(theme=theme, analytics_enabled=False,css=css) as demo:
             top_p = gr.Slider(
                 minimum=0.5,
                 maximum=1.0,
-                value=0.9,
+                value=0.2,
                 step=0.1,
                 interactive=True,
                 label="Top p",