fix redirect

ice_breaking_challenge/index.py

@@ -23,4 +23,4 @@ def index() -> None:
         case "POST":  # index.html에서 `다음` 버튼 눌렀을 때
             session["team_number"] = request.form.get("team_number")
             session["team_size"] = request.form.get("team_size")
-            return render_template("qr.html")
+            return redirect(url_for("qr.qr"))