Support custom headline keywords about orgro HOT 4 OPEN

Interpreting #+TODO: and related keywords is implemented in v1.41.0, available for testing soon:

• iOS
• Android

from orgro.

This would be great. I just use one sequence #+TODO: TODO HOLD DONE

from orgro.

The main difficulty with this is that the parser needs to know the desired keywords at parse time, so I need one of two things:

• A way for users to input the equivalent of org-todo-keywords as a global setting. But I don't have a settings screen, and I don't want to make one.
• Or, to parse the document, interpret #+TODO: (or #+SEQ_TODO: or #+TYP_TODO:), and then re-parse

from orgro.

I'd vote for #+TODO being enough, that way if one syncs org files, the keyword list is trivially synced with them.

from orgro.