サンプルゲームを調整
Merge branch 'master' of https://github.com/y-ya/simple_card

Conflicts:
	simple_card/Assets/Resources/card.prefab
	simple_card/Assets/Script/CreateCard.cs
	simple_card/Assets/Script/DestroySpriteOutsideCamera.cs
	simple_card/Assets/Script/FallCard.cs