Update app.py

app.py

@@ -18,7 +18,7 @@ def create_agent_card(title, description, features, url, color, status="active")
     
     if status == "active":
         button = f"""
-        <a href="{url}" target="_blank" class="launch-btn" style='
+        <a href="{url}" target="_blank" rel="noopener noreferrer" class="launch-btn" style='
             display: block;
             text-align: center;
             padding: 14px;