Note(s) preview: Integrate with Marked app

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Keypoints currently offers no in-app preview which render(s) the selected Markdown note(s). While an in-app preview may also be desirable, I’d like to first offer an integration with the dedicated Markdown preview app Marked 2.

After choosing a “Preview in Marked” menu command (or shortcut), Marked would “track” the note(s) currently selected in Keypoints and display their rendered preview.

By using a custom preprocessor Keypoints would ensure that its notes can be nicely rendered in Marked.

Technically, there are a few options to integrate with Marked, e.g.:

1. Streaming preview
2. AppleScript
3. URL handler
4. Index file