Rename `HuggingFaceH4` to `open-llm-leaderboard` org in modelcards

Following recent moving of the Open LLM Leaderboard to https://huggingface.co/spaces/open-llm-leaderboard/open_llm_leaderboard (cc

@clefourrier
).

app.py

@@ -27,11 +27,11 @@ def refresh(how_much=43200): # default to 12 hour
       refresh(600) # 10 minutes if any error happens
 
 gradio_title="🧐 Open LLM Leaderboard Results PR Opener"
-gradio_desc= """🎯 This tool's aim is to provide [Open LLM Leaderboard](https://huggingface.co/spaces/HuggingFaceH4/open_llm_leaderboard) results in the model card.
+gradio_desc= """🎯 This tool's aim is to provide [Open LLM Leaderboard](https://huggingface.co/spaces/open-llm-leaderboard/open_llm_leaderboard) results in the model card.
 
 ## 💭 What Does This Tool Do:
 
-- This tool adds the [Open LLM Leaderboard](https://huggingface.co/spaces/HuggingFaceH4/open_llm_leaderboard) result of your model at the end of your model card.
+- This tool adds the [Open LLM Leaderboard](https://huggingface.co/spaces/open-llm-leaderboard/open_llm_leaderboard) result of your model at the end of your model card.
 
 - This tool also adds evaluation results as your model's metadata to showcase the evaluation results as a widget.