This is false alarm. Virustotal doesn't show anything:
https://www.virustotal.com/en/file/420144b9064566a00e9c190d319005bbb8c3fe08229c44e804796d2bb738e7d5/analysis/1431680828/

What do you mean by dropbox/onedrive - that the user will save the HTML file into such shared folder, or that Javascript on the page should itself use it?

Ok, let's make this one about table of contents.
But I'm not sure about including notes into each other. This will require to add a "child note" concept.
Could you elaborate:
1) Why linking notes with each other doesn't fit here?
2) Why do you need this function, what is it that it'll enable you to do?
Thanks!

Ok, thanks for the clarification!

Thanks for the suggestion!
Do I understand correctly that you mean both notes list and note editor here?

Hi Vladimir,
Thanks for the suggestion!
Seems to me this is two different ideas:
1) Including notes into each other
2) Autogenerated table of contents
Is that correct?

Thanks for the suggestion!

Simply Alt+Shift+click on the parent tag