Add UI description, functionality.

app.py

@@ -29,10 +29,9 @@ with gr.Blocks(css="#htext span {white-space: pre-line}") as demo:
                         ctrlsum_file = gr.File(label="Input File")
                         ctrlsum_str = gr.TextArea(label="Input String", max_lines=5)
                         with gr.Column():
-                            gr.Markdown("* Set the length of text used for summarization. Length 0 will exert no control over length.")
                             # ctrlsum_file_beams = gr.Number(label="Number of beams for beam search", value=1, precision=0)
                             # ctrlsum_file_sequences = gr.Number(label="Number of generated summaries", value=1, precision=0)
-                            ctrlsum_file_length = gr.Radio(label="Length", value=0, choices=[0, 50, 100, 200])
+                            ctrlsum_file_length = gr.Radio(label="Length", value=0, choices=[0, 50, 100, 200], info="Set the maximum limit for the length of text generated in the output summary. Length 0 implies no restriction on the summary length.")
                             kw = gr.Radio(visible=False)
                             ctrlsum_file_keywords = gr.Textbox(label="Keywords", max_lines=1)
                         with gr.Row():
@@ -40,6 +39,8 @@ with gr.Blocks(css="#htext span {white-space: pre-line}") as demo:
                     ctrlsum_file_output = gr.Textbox(
                         elem_id="htext",
                         label="Summary",
+                        show_label=True,
+                        show_copy_button=True
                     )
                 ctrlsum_file_examples = gr.Examples(
                     examples=[["examples/H01-1042_body.txt", 50, "automatic evaluation technique", "", ""],