update README.md

Author: ivanvasutinskiy

brain_games/game_skeleton.py

@@ -15,8 +15,8 @@ def game_start(game):
         answer = get_answer(question)
 
         if answer != correct:
-            print(f"'{answer}' is wrong answer ;(." 
-            f"Correct answer was '{correct}'."
+            print(f"{answer} is wrong answer ;(." 
+            f"Correct answer was {correct}."
             f"\nLet's try again, {player}!")
             return
         print('Correct')