Update app.py

app.py

@@ -357,6 +357,9 @@ with gr.Blocks(css=STYLES) as demo:
     with gr.Column(scale=1):
       with gr.Tab("Control"):
         with gr.Column(elem_classes=['group-border']):
+          with gr.Column():
+            gr.Markdown("`generate text` button generate continued text and attach it to the end. on the other hand, `generate alternatives` button generate alternate texts up to 3 and let you choose one of them.")
+              
           with gr.Row():
             gen_btn = gr.Button("generate text", elem_classes=['control-label-font', 'control-button'])
             gen_alt_btn = gr.Button("generate alternatives", elem_classes=['control-label-font', 'control-button'])
@@ -374,7 +377,7 @@ with gr.Blocks(css=STYLES) as demo:
               gr.Markdown("↳", scale=1, elem_classes=['wrap'])
               alt_btn3 = gr.Button("Alternative 3", elem_classes=['alt-button'], scale=5)
 
-        with gr.Row(elem_classes=['group-border']):
+        with gr.Row(elem_classes=['']):
           with gr.Column():
             gr.Markdown("'Write the next paragraph based on the following stories so far.' is the default prompt when clicking `generate text`, and the text so far will always be attached to the end. By giving your own prompt, only the default prompt will be replaced.")