* [Markdown Exporter] [YAML Exporter] Ensure exported entires end in a newline
Fixes#768, Fixes#881.
If the exported entry does not have a final empty line, this will add one on export. Some Markdown parsers get picky about not having a empty line above a heading....
* fix black formatting issues
* explicitly sort filenames
to deal with inconsistent default file ordering on different OS's
* Update .gitignore
* Update test for typo fix
Co-authored-by: Jonathan Wren <jonathan@nowandwren.com>