feat: Add attribution and references to the portfolio markdown

app.py

@@ -141,7 +141,8 @@ with gr.Blocks(css=css) as demo:
     gr.Markdown(
         "### This is my portfolio.\n"
         "**Note**: Generation quality may vary. For best results, adjust the parameters.\n"
-        "Special thanks to [@artificialguybr](https://huggingface.co/artificialguybr) and [@fffiloni](https://huggingface.co/fffiloni)."
+        "Special thanks to [@artificialguybr](https://huggingface.co/artificialguybr) and [@fffiloni](https://huggingface.co/fffiloni).\n"
+        "Based on [https://huggingface.co/spaces/fffiloni/sd-xl-custom-model](https://huggingface.co/spaces/fffiloni/sd-xl-custom-model) and [https://huggingface.co/spaces/gokaygokay/TileUpscalerV2](https://huggingface.co/spaces/gokaygokay/TileUpscalerV2)"
     )
 
     with gr.Row():