Gets or sets the Markdig extensions to be enabled. Allows you to add extensions dynamically at runtime or set non-supported (via these options) settings

This shouldn't be needed - use the options instead but this can be used in case Markdig adds extensions that aren't exposed here.

Comma or + separated list of extension names: gridtables+pipetables+customcontainers

If options are availe

public string MarkdigExtensions { get; set; }