Hi @Kunde21 and @bwplotka I've forked this project, since it seems our goals may be different. If they aren't though, I'd rather work with others instead of alone. It seems your current goal is a formatter matching goldmark's feature set? Do you plan to add other extensions? I'm adding all goldmark extensions, plus these:

• https://github.com/13rac1/goldmark-wikilink
• https://github.com/13rac1/goldmark-hashtag
• https://github.com/13rac1/goldmark-meta

Example of different goals (I'm sure there are more) from /markdownfmt/testfiles/example1.input.md

Paragraphs will be also concatenated for clean view.
However, it might be not easy to edit it via editors, so you can specify text line width to be ensured. It also makes sure words are together,so it will ensure wanted line length as you wish.

I want to keep that soft linebreak in the markdown after formatting, it is especially important in the case of quotes.