How can I add extra HTML markup to individual features in Wagtail's RichTextField and have it be stored in the database? Specifically, I need to change the default appearance of a rendered <ul> ...

I am looking for a way to register a new editor feature to the wagtail WYSIWYG editor. The following code adds the bullet list to the editor. (It is also built-in). @hooks.register('register_rich_tex...