Linebreak after block element doesn't render properly

[EvitanRelta]

If theres a line break after a block element (eg. paragraph, or header), Github markdown won't render the linebreak
(though Github issues renders it slightly differently).

Current MarkGH generated markdown
Code	Rendered on Github
paragraph <br> ## HEADER	paragraph HEADER
Expected
–	paragraph HEADER
Possible Fixes
paragraph <br>&ZeroWidthSpace; ## HEADER	paragraph ​ HEADER
paragraph <br><br> ## HEADER	paragraph HEADER
paragraph<br><br> ## HEADER	(same as above, but also renders the same in Github Issues)

Proposed fix

The below conversion might be more inclusive (as it renders the same in Github Issues):

paragraph<br><br>

## HEADER

But this one looks cleaner. And since Github Issue's renderer is different, we probably don't need to take it into account?

paragraph
<br><br>

## HEADER

[EvitanRelta]

Another benefit of putting the <br><br> on a new line:
it transitions smoother (ie. minimal conversion changes) when u later fill that line with text:

compared to <br><br> on the same line: