Update app.py

app.py

@@ -61,7 +61,7 @@ with gr.Blocks(css=css) as demo:
       with gr.Column():
         input_img = gr.Image(label="Input Document")
         question = gr.Text(label="Question")
-        submit_btn = gr.Button(label="Submit")
+        submit_btn = gr.Button(value="Submit")
       output = gr.Text(label="Answer")
     gr.Examples(
     [["docvqa_example.png", "How many items are sold?"]],
@@ -79,7 +79,7 @@ with gr.Blocks(css=css) as demo:
       with gr.Column():
         input_img = gr.Image(label="Input Image")
         question = gr.Text(label="Question")
-        submit_btn = gr.Button(label="Submit")
+        submit_btn = gr.Button(value="Submit")
       output = gr.Text(label="Answer")
     gr.Examples(
     [["infographics_example.jpeg", "What is this infographic about?"]],
@@ -96,7 +96,7 @@ with gr.Blocks(css=css) as demo:
       with gr.Column():
         input_img = gr.Image(label="Input UI Image")
         question = gr.Text(label="Question")
-        submit_btn = gr.Button(label="Submit")
+        submit_btn = gr.Button(value="Submit")
       output = gr.Text(label="Caption")
     submit_btn.click(infer_chart, [input_img, question], [output])
     gr.Examples(
@@ -113,7 +113,7 @@ with gr.Blocks(css=css) as demo:
       with gr.Column():
         input_img = gr.Image(label="Input Chart")
         question = gr.Text(label="Question")
-        submit_btn = gr.Button(label="Submit")
+        submit_btn = gr.Button(value="Submit")
       output = gr.Text(label="Caption")
 
     submit_btn.click(infer_chart, [input_img, question], [output])