personally i just use app.classeur.io, I think its a very native way of writing guides / posts. Follows traditional markdown formatting and writes kind of like writing a post on talk.dynalist.io (discourse forum)
I wrote this post yesterday
http://vincentmtang.com/2017/08/12/why-dynalist-is-the-best-code-snippet-manager/
below is what my raw document looks like as i typed it out
https://app.classeur.io/#!/files/ZjiIApvfFjf0dM2Lg6Q4
I literally didn’t even look at wordpress at all when I published above document. Formatting comes out 90% on point, and it handles code snippets well too using traditional markdown formatting like ```python {code snippet here} ````
What’s also nice is that when i wrote my blog post in app.classeur.io its platform independent as it follows all standard markdown procedures, meaning 100% portable. I use my own imgur + shareX setup to quickly make all my images and have 3 layers of redundancy built in in the event I lose data (directly through app.classeur.io, 1 through my wordpress host, and a direct backup to dropbox through wordpress admin)
below is my general setup
http://vincentmtang.com/2017/05/14/distraction-free-wordpress-writing-with-markdown-app-classeur-io/
When I write long lengthy technical manuals I prefer using gitbooks.io
Example of one I’ve written for shareX + image server setup
https://anacondapython.gitbooks.io/sharex-user-manual/content/
this doesn’t really answer your question but this is the work around that i use
you can probably make your own version of markdown export from dynalist, another use made one for mac users