Hi @armandocat,
This is some really good stuff you're doing for the Steemit community and the markdown preview feature from this version tops the list.
Thank you so much :)
You should talk to @steemit and @steemitblog (and the Steemit team) about integrating some of these features directly into the website!
Thanks! I don't know how I could contact them, but I'll be happy to help!
I'm not completely sure, but there might be people on steemit.chat who could help (or try to contact @ned directly).
Also, for the markdown preview scrolling (where the preview scrolls to where I scroll in the markdown), it doesn't seem to be working for macOS Sierra + Chrome :)