public PlainTextRenderer(TextWriter writer)
            : base(writer)
        {
            writer.NewLine = "\r\n";

            // Replace some default inline renderers to work-around plain-text conversion bugs in Markdig.Markdown.ToPlainText().
            ObjectRenderers.Replace <AutolinkInlineRenderer>(new PlainTextAutoLinkInlineRenderer());
            ObjectRenderers.Replace <EmphasisInlineRenderer>(new PlainTextEmphasisInlineRenderer());
            ObjectRenderers.Replace <LinkInlineRenderer>(new PlainTextLinkInlineRenderer());
        }