Arbital todo

You can leave todo markers for yourself or other authors. For example:
finish this section finish this section

todo:  
You can put any funky *markdown* syntax here including `links`.

This will only appear in the top quality bar when expanded, not the page text. Red links and “todo” markers count towards the todo score, which you will see next to the pages on the Explore and your Profile pages.

todo: You can put any funky markdown syntax here including links.

Guidelines on use.