(google-translate, german > english): How about "file-internal" navigation? So either I press this key (see attachment) or the first letter of the file name and then use the cursor keys to go to the end of the word " nature ". Then use < 0 > < 2 > < 5 > < 1 > to go to the file " nature0251 ". Then ...
I couldn't get the relative path to work either. I've created something that allows me to repair the local image links again and again. They have to be present in the MarkDown files as an absolute local path.
It took a moment for me to get the regex for search and replace to work, but it works ...