updated cocoapods on readme and added to do section
updated cocoapods on readme and added to do section

tasselx/JHChainableAnimations,zwcshy/JHChainableAnimations,davieds/JHChainableAnimations,KBvsMJ/JHChainableAnimations,mobdim/JHChainableAnimations,sujeking/JHChainableAnimations,DestroyMan/JHChainableAnimations,jhurray/JHChainableAnimations,yangaqi/JHChainableAnimations,sujeking/JHChainableAnimations,tasselx/JHChainableAnimations,alexfeng/JHChainableAnimations,zwcshy/JHChainableAnimations,benzhipeng/JHChainableAnimations,DestroyMan/JHChainableAnimations,tasselx/JHChainableAnimations,jhurray/JHChainableAnimations,mobdim/JHChainableAnimations,liric28/JHChainableAnimations,liric28/JHChainableAnimations,benzhipeng/JHChainableAnimations,davieds/JHChainableAnimations,jhurray/JHChainableAnimations,benzhipeng/JHChainableAnimations,mobdim/JHChainableAnimations,yangaqi/JHChainableAnimations,davieds/JHChainableAnimations,zwcshy/JHChainableAnimations,yangaqi/JHChainableAnimations,KBvsMJ/JHChainableAnimations,DestroyMan/JHChainableAnimations,liric28/JHChainableAnimations,alexfeng/JHChainableAnimations,sujeking/JHChainableAnimations,alexfeng/JHChainableAnimations,KBvsMJ/JHChainableAnimations