update about.py: add leaderboard backend link

src/about.py

@@ -23,6 +23,11 @@ BENCHMARKS_TEXT = f"""
 
 EVALUATION_QUEUE_TEXT = """
 ## Check out the submission steps at [our GitHub repo](https://github.com/AIR-Bench/AIR-Bench/blob/main/docs/submit_to_leaderboard.md)
+
+## You can find the **STATUS of Your Submission** in the [**Backend Space**](https://huggingface.co/spaces/AIR-Bench/leaderboard_backend). 
+
+- If the status is **✔️ Success**, then you can find your results in the [**Leaderboard Space**](https://huggingface.co/spaces/AIR-Bench/leaderboard).
+- If the status is **❌ Failed**, please check your submission steps and try again. If you have any questions, please feel free to open an issue [here](https://github.com/AIR-Bench/AIR-Bench/issues/new).
 """
 
 CITATION_BUTTON_LABEL = "Copy the following snippet to cite these results"