Update leaderboard.py

leaderboard.py

@@ -17,7 +17,8 @@ def render_info_html():
 
     1. Use the IqraEval open testset “IqraEval/open_testset”  
     2. Package your predictions in a CSV file with exactly two columns, **id** and **predicted_sequence**  
-    3. Send your CSV along with your **team_name** to **challenge@iqraeval.org**
+    3. Send your CSV along with your **team_name** to **iqraeval-submissions@googlegroups.com**
+    4. Each team may submit up to 2 times per day. Only the best results from each team will be displayed on the leaderboard.
 
     Once we receive your file, your system will be automatically evaluated and placed on the public leaderboard. Check out the **Metrics** tab to see how scores are computed, and the **Leaderboard** tab for current rankings.