add build instruction
add build instruction

wyxacc/NumberProgressBar,lstNull/NumberProgressBar,wangkang0627/NumberProgressBar,hgl888/NumberProgressBar,Bob1993/NumberProgressBar,xjswxdx/NumberProgressBar,all4coding/NumberProgressBar,flylives/NumberProgressBar,YlJava110/NumberProgressBar,zhupengGitHub/NumberProgressBar,10045125/NumberProgressBar,xiaotaijun/NumberProgressBar,jaohoang/NumberProgressBar,duaiyun1314/NumberProgressBar,xiaoshi316/NumberProgressBar,HiWong/NumberProgressBar,GeorgeMe/NumberProgressBar,Zulqurnain/NumberProgressBar,xiebaiyuan/NumberProgressBar,leerduo/NumberProgressBar,yt7789451/NumberProgressBar,cemlyzone/NumberProgressBar,HKMOpen/NumberProgressBar,ZhaoYukai/NumberProgressBar,tanweijiu/NumberProgressBar,daimajia/NumberProgressBar,MalwinderSingh/NumberProgressBar,jyushion/NumberProgressBar,Sarfarazsajjad/NumberProgressBar,prashant31191/NumberProgressBar,hzw1199/NumberProgressBar,ylfonline/NumberProgressBar,wswenyue/NumberProgressBar