chore: update website url

app.py

@@ -346,7 +346,7 @@ with gr.Blocks() as demo:
                 - To get a *certificate of completion*: you need to **contribute to at least one model, dataset, or space**.
                 - To get a *certificate of excellence*: you need to **contribute to models, datasets, and spaces**. *(Yes, all three!)*
                 
-                For more information about the certification process [check the hackathon page on certification](https://pseudo-lab.github.io/huggingface-hackathon23/tutorials/index.html).
+                For more information about the certification process [check the hackathon page on certification](https://pseudo-lab.github.io/huggingface-hackathon23/ko/tutorials/index.html).
                 Don't hesitate to share your certificate on Twitter (tag me [@wonhseo](https://twitter.com/wonhseo) and [@huggingface](https://twitter.com/huggingface)) and on LinkedIn.
                 """
             )