Add a notice about the result pushing pipeline

Related to [#401](https://huggingface.co/spaces/HuggingFaceH4/open_llm_leaderboard/discussions/401), I think it will be better if there is a notice on the submission page.

src/display/about.py

@@ -107,6 +107,9 @@ When we add extra information about models to the leaderboard, it will be automa
 If your model is displayed in the `FAILED` category, its execution stopped.
 Make sure you have followed the above steps first.
 If everything is done, check you can launch the EleutherAIHarness on your model locally, using the above command without modifications (you can add `--limit` to limit the number of examples per task).
+
+- Currently, there is an issue with our pipeline, which is responsible for automatically pushing the evaluation results; therefore, we will manually push them once a day
+- Until we fix this issue, there may be a delay in your results appearing on the leaderboard, even if the evaluation is successfully completed. Thank you for your patience.
 """
 
 CITATION_BUTTON_LABEL = "Copy the following snippet to cite these results"