[NGINX] userdir 추가

location ~ ^/~([^/]+)/(.+\.php|\.htm)$ {
    if (!-f /home/$1/www/$2) {
        rewrite ^ 404;
    }
    alias /home/$1/www/$2;
}
location ~ ^/~([^/]+)(/.*)?$ {
    alias /home/$1/www$2;
    autoindex on;
}