replaced placeholders

app.py

@@ -227,13 +227,13 @@ with gr.Blocks() as demo:
         with gr.Column(scale=7):
             piechart = gr.Plot()
         with gr.Column(scale=3):
-            gr.Markdown(placeholder)
+            gr.Markdown("The following pie chart shows the average probabilities of all emotions associated with the entire text.")
 
     with gr.Row():
         with gr.Column(scale=7):
             plot = gr.Plot()
         with gr.Column(scale=3):
-            gr.Markdown(placeholder)
+            gr.Markdown("The bar plot represents the relative frequency of emotion predictions at the sentence level.")
 
     with gr.Row():
         with gr.Column(scale=7):
@@ -243,13 +243,13 @@ with gr.Blocks() as demo:
                 wrap=True  # important
             )
         with gr.Column(scale=3):
-            gr.Markdown(placeholder)
+            gr.Markdown("The table displays the predicted emotion and its confidence value for each sentence in the text.")
 
     with gr.Row():
         with gr.Column(scale=7):
             heatmap = gr.Plot()
         with gr.Column(scale=3):
-            gr.Markdown(placeholder)
+            gr.Markdown("The table displays the predicted emotion and its confidence value for each sentence in the text")
 
     with gr.Row():
         model_info = gr.Markdown()