Hey, just created my first plugin “Title renamer”, which simply keeps the first H1 heading in the markdown contents synchronised with the file name (yet respecting manual changes). Already has 6 downloads even though I didn’t shout about it anywhere yet 
There was another alternate plugin “Filename heading sync”, but that was far too aggressive for my workflow, so I made my own 
So far only for desktop due to the use of node.js modules, but I intend to replace that with a platform agnostic solution.