options.go
func (opts *Options) AddNoCloseTagName(name string) {
	opts.NoCloseTagNames = append(opts.NoCloseTagNames, name)
}
func (opts *Options) AddNoCloseTagName(name string) {
	opts.NoCloseTagNames = append(opts.NoCloseTagNames, name)
}
// AddNoCloseTagName appends name to .NoCloseTagNames set.