Update constants.py

constants.py

@@ -33,7 +33,7 @@ SUBMIT_INTRODUCTION = """# Submit Introduction
     1. Fill in 'Video-ChatGPT' in 'Model Name' if it is your first time to submit your result (You can leave 'Revision Model Name' blank).
     2. Fill in 'Video-ChatGPT' in 'Revision Model Name' if you want to update your result (You can leave 'Model Name' blank).
     3. Fill in 'https://github.com/x/x' in 'Model Link'.
-    4. Upload Final_score_table.csv.
+    4. Upload `Final_score_table.csv`.
     5. Click the 'Submit Eval' button.
     6. Click 'Refresh' to obtain the uploaded leaderboard.
 """