Initializes a new instance of the EmphasisExtraExtension class.
public EmphasisExtraExtension(EmphasisExtraOptions options = EmphasisExtraOptions.Default | EmphasisExtraOptions.Strikethrough | EmphasisExtraOptions.Subscript | EmphasisExtraOptions.Superscript | EmphasisExtraOptions.Inserted | EmphasisExtraOptions.Marked)
The options.