changed method for quiz

Author: Manollo-36

backend/flaskr/__init__.py

@@ -306,7 +306,7 @@ def retrieve_questions_by_category(category_id):
     and shown whether they were correct or not.
     """
 
-    @app.route("/quizzes", methods=["GET"])
+    @app.route("/quizzes", methods=["POST"])
     def play_quiz():
         #try:
             quiz_request = request.get_json()