update

type Asset struct {
	Name        string `json:"name"`
	DownloadURL string `json:"browser_download_url"`
	Version     string `json:"-"`
	Size        int64  `json:"size"`
}

type GithubReleases struct {
	Asset []Asset `json:"assets"`
}

type WriteCounter struct {
	Total      uint64
	Downloaded uint64
	URL        string
	Reentry    bool
}