GitHub README.md files are a nice example for use case. It is a text file, but which can use lists, code inclusions, links and images (the later are not availa

GitHub README.md files are a nice example for use case. It is a text file, but which can use lists, code inclusions, links and images (the later are not available in text mode... unless you want to do ASCII art). When it comes to notes opinion vary. Some use Markdown (BTW: for notes I only keep them in the plain text mode - so the only difference is some highlighting), some org-mode, some various other tools.