adding cta

Signed-off-by: Kieran Fraser <Kieran.Fraser@ibm.com>

app.py

@@ -397,6 +397,13 @@ with gr.Blocks(css=css, theme='Tshackelton/IBMPlex-DenseReadable') as demo:
                                                                 patch_width],
                                                     outputs=[original_gallery, adversarial_gallery, delta_gallery, clean_accuracy,
                                                             robust_accuracy])
+            
+    gr.Markdown('''<br/>''')
+    
+    gr.Markdown('''<p style="font-size: 18px; text-align: center;"><i>⚔️ Want to try out an evasion attack with your own model and data?
+                Run our <a href="https://github.com/Trusted-AI/adversarial-robustness-toolbox/blob/main/notebooks/hugging_face_evasion.ipynb" 
+                    target="_blank">notebooks</a>!</i></p>''')
+    
     
     gr.Markdown('''<br/>''')