Revised IMPORTANT sentence under Button Type section in README
Revised IMPORTANT sentence under Button Type section in README

piercefreeman/HTPressableButton,Famolus/HTPressableButton,piercefreeman/HTPressableButton,qingpengchen2011/HTPressableButton,qingpengchen2011/HTPressableButton,herinkc/HTPressableButton,Famolus/HTPressableButton,piercefreeman/HTPressableButton,Famolus/HTPressableButton,herinkc/HTPressableButton,herinkc/HTPressableButton,qingpengchen2011/HTPressableButton