Merge pull request #23 from oxygen-dioxide/openfile

Support opening a file with Pandoc GUI

fix ci for release

bump .net version in github actions

Merge branch 'master' of https://github.com/Ombrelin/pandoc-gui

Merge pull request #10 from Ombrelin/develop

Develop

fix for permission bug + fix macOS CI

fix macos ci

add icon + fix mac instructions

fix yaml syntax