README: use coding logo
README: use coding logo

使用 coding 的洋葱猴 logo 作为 coding 仓库的图标
尝试让 README 中所有链接在新标签页打开

wsdjeg/hosts,ruidalin/hosts,VegetaPn/hosts,racaljk/hosts,Xiejiayun/hosts,coolrc136/hosts,Xiejiayun/hosts,Xiejiayun/hosts