Update app.py

app.py

@@ -171,7 +171,7 @@ async def upload_certificate_to_hub(username: str, certificate_img) -> str:
 
             # Construct the URL to the image
             cert_url = (
-                f"https://huggingface.co/datasets/{CERTIFICATE_DATASET_REPO_ID/"
+                f"https://huggingface.co/datasets/{CERTIFICATE_DATASET_REPO_ID}/"
                 f"resolve/main/certificates/{username}/{date.today()}.png"
             )
 
@@ -231,7 +231,7 @@ async def push_results_to_hub(
 
         if cert_url is None:
             gr.Warning("Certificate upload failed, but you still passed!")
-            cert_url = "https://huggingface.co/mcp-course"
+            cert_url = "https://huggingface.co/smol-course"
 
         # Create LinkedIn button
         linkedin_button = create_linkedin_button(profile.username, cert_url)