This v3 supports the compose/HTML mode toggle
with a ToC composed by "external/pseudo-internal" links.
DON'T change the title of your post or page after the generation of ToC and internal links.
If you add new headings and you want to add a link in ToC, you have to add directly in HTML, both a link in your headings and in your ToC.
This post is just an example of the output.
Create anchor links or bookmark links for fast navigation.