docs: add direct link to certificate

app.py

@@ -190,11 +190,12 @@ def create_certificate(passed, certificate_type, hf_username, first_name, last_n
         # Add this user to our database
         add_certified_user(hf_username, first_name, last_name, certificate_type)    
         # Add a message
-        message = """
+        message = f"""
         Congratulations, you successfully completed the 2023 Hackathon 🎉! \n 
         Since you contributed to models, datasets, and spaces- you get a Certificate of Excellence 🎓. \n
         You can download your certificate below ⬇️ \n
-        Don't hesitate to share your certificate image below on Twitter and Linkedin (you can tag me @wonhseo, @pseudolab and @huggingface) 🤗
+        Don't hesitate to share your certificate link below on Twitter and Linkedin (you can tag me @wonhseo, @pseudolab and @huggingface) 🤗
+        https://huggingface.co/datasets/pseudolab/huggingface-krew-hackathon2023/resolve/main/pdfs/{hf_username}.pdf
         """
     elif passed and certificate_type == "completion":    
         # Generate a certificate of completion
@@ -202,12 +203,13 @@ def create_certificate(passed, certificate_type, hf_username, first_name, last_n
         # Add this user to our database
         add_certified_user(hf_username, first_name, last_name, certificate_type)    
         # Add a message
-        message = """
+        message = f"""
         Congratulations, you successfully completed the 2023 Hackathon 🎉! \n 
         Since you contributed to at least one model, dataset, or space- you get a Certificate of Completion 🎓. \n 
         You can download your certificate below ⬇️ \n
-        Don't hesitate to share your certificate image below on Twitter and Linkedin (you can tag me @wonhseo, @pseudolab and @huggingface) 🤗 \n
+        Don't hesitate to share your certificate link below on Twitter and Linkedin (you can tag me @wonhseo, @pseudolab and @huggingface) 🤗 \n
         You can try to get a Certificate of Excellence if you contribute to all types of repos, please don't hesitate to do so.
+        https://huggingface.co/datasets/pseudolab/huggingface-krew-hackathon2023/resolve/main/pdfs/{hf_username}.pdf
         """
     else:
         # Not passed yet
@@ -243,7 +245,7 @@ with gr.Blocks() as demo:
     
     For more information about the certification process [check the hackathon page on certification](https://pseudo-lab.github.io/huggingface-hackathon23/submit.html#certification).
     
-    Don't hesitate to share your certificate on Twitter (tag me [@wonhseo](https://twitter.com/wonhseo), [@pseudolab](https://twitter.com/pseudolab), and [@huggingface](https://twitter.com/huggingface)) and on LinkedIn.
+    Don't hesitate to share your certificate on Twitter (tag me [@wonhseo](https://twitter.com/wonhseo), [@pseudolab](https://twitter.com/pseudo-lab), and [@huggingface](https://twitter.com/huggingface)) and on LinkedIn.
     """)
     
     hf_username = gr.Textbox(placeholder="wseo", label="Your Hugging Face Username (case sensitive)")