Update app.py

app.py

@@ -107,7 +107,7 @@ with gr.Blocks() as app:
             
         with gr.Column():
             check_h=gr.Checkbox(label="Show Header", value=True)
-            check_b=gr.CheckboxGroup(label="Chatblocks", choices=[1,2,3,4,5,6,7,8,9,10], value=[1])
+            check_b=gr.CheckboxGroup(label="Chatblocks", choices=[1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20], value=[1])
             with gr.Row():
                 height=gr.Number(label="Height", value=4096)
                 width=gr.Number(label="Width",value=800)