private async Task <string> RenderContentAsync(string markdown, DocumentMetaData metaData, HashSet <string> mediaFiles, int slot)
{
var body = await _markdownParser.ParseAsync(markdown);
// Hack: Replace all links to .md files with links to .html files,
// as we're changing the extension of the files during local generation.
body = body.Replace(".md)", ".html)")
.Replace(".md\"", ".html\"")
.Replace(".md#", ".html#");
var sb = new StringBuilder();
sb.AppendLine($"<div class=\"example-content-preview example-content-preview-slot-{slot}\">");
sb.AppendLine(GetPreviewVideo(mediaFiles));
sb.AppendLine("</div>");
sb.AppendLine("<div class=\"example-content-body\">");
sb.AppendLine(body);
sb.AppendLine("</div>");
return(sb.ToString());
}